Well, my brother got an Xbox 360 Elite for his birthday on Thursday, along with Rockstar' s Table Tennis and a suppossed copy of Blue Dragon which hasn' t arrived yet (damn PC World).

So I was wondering, Bioshock and Oblivion aside, what are the most must-have games out for the system at the moment? I mean the absolute MUST-haves, as I am not made out of money and don' t want to get so many games that I end up forgetting to play some of them (it' s happened before).

Buy Geomery Wars (arcade game)
A lot of the must haves are coming out at the end of the year.

Halo 3
Mass Effect
PGR 4
Orange Box (if you won' t get it on PC)

save your money for those

In the meantime I would rent
GEARS
GRAW 2
PGR 3
cod 2 and cod 3

Pac-Man CE
Call of Duty 2
Alien Hominid
Catan
GRAW 2 (if you have/going to get gold)

Forza 2 if you like racing sims.
PGR3 if you like arcade-ish racing.
Dirt if you like good looking racing.
Gears of War if you like videogames...
Viva Pinata if you like peaceful gardening...

Download demos from the marketplace and see for youself what is interesting to you.

Did you have an Xbox before the 360? If not then there are tons of really good games you can buy for practically nothing.
Make sure to check if they' re BC first.

go with Gears of war
GRAW 2
Mass Effect

All basically kick ass action.

If ya haven' t played Half Life 2 (episode1 )or Halo 2 now is still sooner than later.