Build me a comp!

going to follow someones advice and try and put it together myself, I've seen a few youtube videos on how to put it all correctly and i have a friend who has experience with computers so he'll help me out with it.

For the specs of the comp, Intel or AMD doesn't matter, whichever one is best bang for the buck, for the graphics card I'd like something relatively new capable of running wow on all high settings and can maybe stream/fraps, I'd like the case to have a side window in it and the memory around 4-6 gigs, im definitely going to be upgrading in the future so id like the mobo to be able to handle most of the upgrades.

THanks again!

edit: I'd like to be a quad core if possible all under $800