xbox live games to get

k i just got my live this weekend and i have 7 games for my 360: halo 3, gta 4, cod4, forza 2, assasin's creed, mass effect, and nhl 08

what other good games (that feature live) are good tht i should get

for sure im getting gears 1 and 2 and bioshock, but im a big fan of sports games and music games, but which 1 should i get: gh world tour or rock band 2?

and when is the nex xbx live marketpalce dashboard gonna b updated

nhl 09 owns

way better then o8

u pritty much have most of the good games.

i would say rainbow six vegas 2. its pritt good its ur a swat team killer terrorist.