Well I've been looking into notebook computers and I think I might get a macbook. I'll use it mainly for surfing the web and photoshop and making videos and such. I barely ever really game that much but I want to know if the Macbook can run some of my more played games: Unreal Tournament 2004 Gmod 11 CS:S (I'm ok with going to CS 1.6 if necessary) WoW Diablo 2 LoD I was also looking into Team Fortress Classic and Audiosurf.
Macs can run WoW no problem, blizzard usually makes their games able to run on PC and MAC. You might have some troubles with Diablo, yes it is a blizzard game but it's really old and anything higher than windows XP can have some troubles running it, there is something you need to download for your MAC to be able to run it correctly.
All those games should be perfectly fine on a macbook. Just make sure you have a good wireless router.
be ready to install windows specifically for the purpose of gaming, also be ready to shell out extra just for the apple name and for a solid graphics card. an 8600 or 9500 is basically a bare minimum for a decent experience. 2600 or 3600 AMD side. to be honest though, unless you have OSX specific software, buying PC clones from apple is usually a bit pricier than going elsewhere