
Hello Hrav, and welcome to the RPC,
Instead of recommending one off the bat i'd like to take a moment to address the question of the "difference" between Legacy and non-Legacy servers. On a mechanical level? Legacy denotes servers pre-existing from 1.0, these servers and characters who are created on them are unable to transfer to non-legacy servers (though non-legacy can come to legacy.) In practice this means that, if we focus on Balmung that Legacy servers have a pre-existing community, for better or worse. Most of the Economic differences, while still evident, are decreasing, particularly with the latest patch (duty roulette and many other gil makers.)
I'll be frank in saying that it really doesn't make an onze of difference as far as the accessibility of the community. I've rolled "test" alts on both servers just for the sake of better understanding the "new player" experience and have found time and time again that the crux of meeting interesting and open people is my characters ability to be open and engage with them (though the 'happy go lucky' miqo' gets more attention than the hellish pint-sized drunken brawler.)
But we can discuss that more if you like in following posts, for now i'd like to provide you with a bit of information to supplement Sihas welcome.
http://ffxiv-roleplayers.com/misc.php?page=welcome
This welcome post is from the whole of the RPC to new members, it covers the bulk of the resources here on the site that can be used as well as giving you a bit of information about the community itself.
If you'd like to spend some time brushing up on your RP terminology, or seeing how others might wrangle with IC explanations for certain game mechanics, Eva has written an excellent Roleplay hand book that can be found at:
http://ffxiv-roleplayers.com/showthread.php?tid=1770
It cover a lot of different things, and different ways to approach them.
But maybe you want to see some of the communities? I have three i'd like to recommend.
http://ffxiv-roleplayers.com/showthread.php?tid=1902
"Intermission" is an OOC linkshell on Balmung that serves as a hub for people. Its fairly large and theres often quite a bit of chatter. A great way to get to know the people you share the server with.
http://ffxiv-roleplayers.com/showthread.php?tid=5045
"Balmungs Finest" is for PVE content, Dungeons, Primals, and the like. getting groups can be fairly easy, or just dropping into slots other people need.
http://ffxiv-roleplayers.com/showthread.php?tid=3116
"Coalition" is a Gilgamesh based OOC hub for players, get to know where people are, what they're up to, where they might be going and all that fun stuff.
Hope that helps introduce you to the community a bit, i'm more than willing to discuss the nuances between them more if you'd like.
Best of luck out in Eorzea, and hope you enjoy the new patch!
EDIT: ah, I see one of the concerns was the Gil, as a note, there are a lot of people on both Balmung and Gilgamesh with a lot, and with a little. Maybe not the answer you want to hear, but the Mercenary runs hosted by big guilds, and people willing to put effort into market gaming make money regardless of server. the latest patch has introduced a few new ways of making Gil though that look promising, particularly at the higher levels.
Instead of recommending one off the bat i'd like to take a moment to address the question of the "difference" between Legacy and non-Legacy servers. On a mechanical level? Legacy denotes servers pre-existing from 1.0, these servers and characters who are created on them are unable to transfer to non-legacy servers (though non-legacy can come to legacy.) In practice this means that, if we focus on Balmung that Legacy servers have a pre-existing community, for better or worse. Most of the Economic differences, while still evident, are decreasing, particularly with the latest patch (duty roulette and many other gil makers.)
I'll be frank in saying that it really doesn't make an onze of difference as far as the accessibility of the community. I've rolled "test" alts on both servers just for the sake of better understanding the "new player" experience and have found time and time again that the crux of meeting interesting and open people is my characters ability to be open and engage with them (though the 'happy go lucky' miqo' gets more attention than the hellish pint-sized drunken brawler.)
But we can discuss that more if you like in following posts, for now i'd like to provide you with a bit of information to supplement Sihas welcome.
http://ffxiv-roleplayers.com/misc.php?page=welcome
This welcome post is from the whole of the RPC to new members, it covers the bulk of the resources here on the site that can be used as well as giving you a bit of information about the community itself.
If you'd like to spend some time brushing up on your RP terminology, or seeing how others might wrangle with IC explanations for certain game mechanics, Eva has written an excellent Roleplay hand book that can be found at:
http://ffxiv-roleplayers.com/showthread.php?tid=1770
It cover a lot of different things, and different ways to approach them.
But maybe you want to see some of the communities? I have three i'd like to recommend.
http://ffxiv-roleplayers.com/showthread.php?tid=1902
"Intermission" is an OOC linkshell on Balmung that serves as a hub for people. Its fairly large and theres often quite a bit of chatter. A great way to get to know the people you share the server with.
http://ffxiv-roleplayers.com/showthread.php?tid=5045
"Balmungs Finest" is for PVE content, Dungeons, Primals, and the like. getting groups can be fairly easy, or just dropping into slots other people need.
http://ffxiv-roleplayers.com/showthread.php?tid=3116
"Coalition" is a Gilgamesh based OOC hub for players, get to know where people are, what they're up to, where they might be going and all that fun stuff.
Hope that helps introduce you to the community a bit, i'm more than willing to discuss the nuances between them more if you'd like.
Best of luck out in Eorzea, and hope you enjoy the new patch!

EDIT: ah, I see one of the concerns was the Gil, as a note, there are a lot of people on both Balmung and Gilgamesh with a lot, and with a little. Maybe not the answer you want to hear, but the Mercenary runs hosted by big guilds, and people willing to put effort into market gaming make money regardless of server. the latest patch has introduced a few new ways of making Gil though that look promising, particularly at the higher levels.