I'm looking to upgrade from my stock 7300GT graphics card on my mac pro because I'd like to game at a resolution of 2560x1600. I've been looking for deals on an X1900, and found this at newegg: http://www.newegg.com/Product/Product.aspx?Item=N82E16814102025R Q1: It will work, right (in Mac OS X and XP?) Q2: If I wanted to ONLY game in Windows via bootcamp, and had a budget of $400, is there some other card I would be better off going with? Q3: Would there be any advantage to holding off a month or two? Many thanks for any advice!