http://forums.tigsource.com/Perhaps post in the Projects forum. If there's a better place for it, mods'll just move the post.
I'm always kind of skeptical about people wanting to do RPGs for their first game; even relatively simple ones have a lot of stuff going on, and if you actually want a
plot to speak of, you've got a lot of work aheaad of you. It might be an idea to avail yourself of a copy of such as RPG Maker and bust out a few
very simple games on your own, to inform your sense of design more than anything else (it'll also give you a taster of how much work goes into even little games). Diving right into a densely-plotted RPG epic with loads of ideas but no prior experience is pretty much
the definitive rookie mistake, screams "THIS PROJECT WILL
NEVER BE FINISHED" right off the bat, and likely will not attract a team that really knows what the hell they're doing.
If you're serious about doing games development, you've gotta do your time like everyone else; start small, learn the basics, crawl before walk walk before run etc. Compare it to filmmaking; you don't immediately set out to film a feature-length movie with a cast of hundreds, you start with your dad's camcorder and four of your friends. Even if you
did hand over a bazillion-dollar budget and access to all the nifty kit money can buy to an enthusiast who'd never actually made a movie before, the result would almost certainly be an absolute trainwreck. Passion and enthusiasm are important - vital even - but cannot and will not make a game happen on their own. You need to learn some aspect of game design as well as you can - and writing a plot is very different from designing a gameworld - if you're to make this happen, and the best way to do that is to start making small games now. Even if you later decide to opt out of the programming/art/music/whatever process when you finally come to making your dream project, you
need the insight that experience provides if you're to effectively relate your ideas to your team.