Daaaaaaaaaaaaaaaaaaaaaaaaaaa!

I loved Rayman, but honestly, your fun will end after about 15 hours with occasional monthly cravings to dance. Or play an On-Rails shooter.

Trauma Center - A surgery game with last boss music. Awesome. Another 15 hours to beat, but if you get into it, plenty of replayability.

Twilight Princess - Duh.

Excite Truck - Starts very easy, and ends extremely hard. Good fun racer that gets frustrating as you try to unlock everything.

Wario - Will only last for under 10 hours, but if you need an introduction into the system, this is the game to get. Not really recommended though.

Elebits - Only got an hour with this one, and interesting, good if you like puzzles mixed with aiming.

Other games I havn't played or can't really recommend. I own Sonic, but... meh. Unless you really dig 80's rock. There are issues with that game. Same with Mario Party 8, only get that if you really really want Mario Party, otherwise wait.

INSTANT BUYS:

Zelda: Twilight princess.

Super paper mario.

Resident evil 4.

WORHT YOUR MONEY BUYS:

The Godfather: Blackhand edition.

Scarface: The world is yours.

SSX: Blur.

Wario ware: Smooth moves.

Excite truck.

Trauma center: Second opinion.

Sonic and the secret rings.

Elebits.

Mario party 8. 

Tony hawk's: Downhill jam. 

MEH... GAMES, BUT IF YOU LIKE EM. BUY EM!

Driver: Parallel lines.

Heatseeker.

Rampala: Fishing tournament.

Cooking mama.

Spiderman 3.

TMNT.

Rampage: Total destruction.

And since you didn't have a Gamecube:

Buy: Timesplitters 2, Timesplitters Future perfect, Metroid 1&2, Super smash bros: Melee, Paper mario 2: The thousand year door, Zelda the windwaker, Beyond good and evil, Animal crossing (Maybe), Donkey konga (With bongo's), Mario kart!

I would buy
Zelda (great)
Exite Truck (a lot of fun, but get and SD card at the same time, because the music in the is not that good)
RE4 (if you didn't try it last gen, you need to now)
Super Paper Mario
and maybe Scarface or Godfather, if you want a sandbox game.

Meteora... As like, Linkin Park meteora?!... Cause then u have my props!

And btw: Welcome to VGCharts forums!

There are quite a few games to check out. I think it really depends on your interests...(I really dig Big Brain Academy)...So I would suggest Gamefly.com or some other such service. That is if you are in the USA and/or near a distribution center.