NO NO! DONT GO BUY.COM !!... FOR YOUR OWN SAKE!
If oyu want yo see your E6600 This year DONT buy from them, I heard HORRIFYING stories about them and their tech supprt and customer service,, HORRIBLE!
It will work perfectly [the Gddr4] probably you should if the X1950XTX has a crossfire edition, Quadro will be useless for you, its only so expensive because it has some extended 3D modeling futures in its driver.
Why don't you get a good LCD screen with your extra money? and if you still have left some money then get ummm *thinks* this I-Ram for the O.S. [then the 36gb raptor will be solely for programs like Word, etc..] http://www.newegg.com/Product/Produc...C-pr1c3grabb3r
OR If you don't need a new monitor you could always get this cpu: http://www.zipzoomfly.com/jsp/Produc...ductCode=80862
This cpu is a true killer far over the E6600[although the E6600 will probably already handle EVERYTHING and ANYTHING you can put on it, only this one will do it even better, LOL].