I went through the same thing back in February, but got lucky and found mine at a GameStop.
Wii Sports is tons of fun. Wii Play is okay, but worth it since you get the controller. RE4 is really good, once you get used to the controls. I have problems since I am a
PC Gamer, it's wierd to me using the WiiMote and Nunchuck for shooting games. I finally got a chance to play the Transformers game last night, and it is a blast, I just need to learn how to drive.
Call fo Duty 3 ain't all that good.
Zelda is really good if you have the time and don't mind the puzzle aspect of some parts.
The Godfather: Blackhand Edition is by far the coolest of the games I have tried, you just ned to have time to really get into it.
Madden 2007 was pretty good, but again I ran into control issues.
BTW, a GameFly subscription is a great way to try out games, that's what I have ben doing.