As an aside, and because SimCity doesn't get mentioned much here, if you're on OS X and want to play Simcity 4, I spent a lot of time getting it to work "just so." The trick is.. Windows XP + Parallels 5 (I'm a big VMware Fusion fan but Parallels 5 boosts SC4 performance wise somehow) + software rendering (hardware rendering is a FAIL/unstable on both Parallels and VMware with SC4).. and I can run everything on high no probs on my iMac. Works a treat.
I'm using Ubuntu but this should still apply to OS X. SimCity 4 works nearly perfectly (both software & hardware rendering) under Wine. There used to be a problem with the installer but based on test results on the Wine AppDB that works now too. Also you can set a custom resolution using "-CustomResolution:enabled" and using eg. "-r1440x900x32" which helps make the game more playable on widescreen monitors. I used to run SimCity under VirtualBox but with larger populations it's much faster under wine.
