New XBox/PC Indie Game: Ring Runner -- And a sincere request for help!

This is as much a happy announcement of our game as it is a humble request for your help!  My brother and I are completely new to the industry, but we've worked very hard on our game for the last four years.  Our launch time is fast approaching (late summer or fall of this year), and we're only just beginning our publicity campaign.  Any advice from you veterans? We're planning on submitting to all of the conferences and competitions because we know they can generate good exposure even if you don't win, but I'm afraid they may be a bit late.  Should we delay release until the proper presence is built, or release anyway?

If you'd like to learn about our game, please allow me to refer you to our Youtube video blog: http://www.youtube.com/user/TripleBTitles

It's basically an action RPG in space with tons of different abilities, ships, and other fun stuff!  Its inspiration can be found in a classic old Mythic game, Silent Death, which if anyone remembers was on AOL games at something like 2 bucks an hour to play.  As a lad, I racked up about 2k in credit card debt in one month and was promptly grounded -- never got to play it again. And now that I can afford to pay for it myself, it doesn't exist, so I figured I'd have to make a modern version.  Other inspirations come from the fast paced action of DotA games and the vast offerings for "horizontal" improvement in Guild Wars.

Thanks for your time!

- Enrique

ringrunner.net