What should I get for my 360?

I got a XBOX 360 for christmas this past year and i need some help with older games that i should get and should have in my collection? I have the essentials now like halo3, COD4, rainbow s, elder scrolls, gears of war the recent good stuff. I need some help with older games in the past year-year and a half that i need to have. Reviews only go so far i wanna hear what ganers suggest and what they feel about games.

im open to any and all suggestions. thanx

You should get Mass Effect.

first off get a memory card so if you get the rrod you wont have lost all of your saved games (like me)

but on the topic you should pick up viva pinata, that game is great:D