You guys are very helpful and yes i already have hammer. I've never installed it until i went over to my friends house and he was makeing a map so i got interested. Anyway, i have the XSI Mod tool with the source and unreal add-on, where can i find those good video tutorials? Ive found some good ones on http://www.iwannamap.com
Also what's a good mapping program where i could use the unreal engine? Is there something other than going out and buying the game?
Thanks for the help