The only thing that I would say could be added for sure are more basketball courts.
There are currently 8 courts inside the rec, but on a regular basis you can only play on 2-3 of them because of a bunch of reasons:
1) one has its space taken by the rock wall and misc stuff
2) one used for volleyball team practice, and usually has a volleyball net up anyway
3) two of them are in the coliseum which is often closed off for various events
4) another one is often not available because, well, the asians have to play badminton somewhere
not to mention that if there happen to be intramural games on a particular night, you'll be lucky to find one court to play ball on.
Build some areas for the extra B.S. (badminton, volleyball, rock climbing, blah blah blah) and that way you can have at least 6 courts full-time devoted ONLY to basketball. I know I was sick and tired of waiting around for an hour in order to be able to play one pick-up game.
Other than that, the facilities aren't that. Cook is pretty awesome - not sure how many other universities have a full football practice facility available for student use. Weight room is pretty good - could be larger though. Often gets crowded and cramped. I'm sure something will get done in the next 5-10 years.
