[quote name='crunchewy']Ok, so here's a question - if you just got a 360 and have never played a Halo game, should you get Halo 3 or Halo 3 ODST? My inclination is to pick up Halo 3 on the cheap, but I'm open to suggestion.[/QUOTE]
I'd actually go back and start from the beginning to get the most out of the story (one and two are backwards compatible). If you don't care about the story, then start with 3, but ODST is worth your time.
I guess since I played and enjoyed both 3 and ODST, I'm not "pure" anymore. According to Captain Elitist Douchebag, anyway.