Don't know if you guys are info Flash/Shockwave games, but this game that I am about to introduce to you is one of
THE best I've ever come across
Table Tennis!
The best I've done is
Ti Hee (11-2, 11-1)
Ben Scot (11-7, 11-7)
Forrest Gump (11-7, 11-7)
but it took me nearly 5 hours (not continuously, of course) to get that good.
Link to some software needed to run this (if you don't have it already, you should)
Shockwave