The mario kart wii is a really fun game – gets high points from everyone! (the depth thing might be hard with this game,as it’s first person) another fun family game is Samba De Amigo – it’s dancing and music, but not as complicated as, say, dance dance revolution. Rabid Rabbit’s TV Party i’ve heard is good, but i’ve not played it as of yet. You could go for a game like Rock Band and/or Guitar Hero, where everyone could have an instrument, and you pick the difficulty level appropriate to you and your instrument. In September, a Beatles Rock Band game is coming out – i’m sure that’d be fun for 50 YOs and college kids.