Originally Posted by OldSchoolPC
Congratulations on your decision to spend $2500 on a gaming rig. You can do a lot of "damage" with that money. Newegg is a great place to purchase the components to build a great machine for $2500. However if you have never built a PC before, and are afraid that you are going to screw up (frying PCs is painful...), I recommend configuring a Dell, or check out Alienware.
I would not recommend either of these, Dells have crappy quality for the most part these days (my last Dell, if, which was always, it had an issue recieved parts replaced by Dell which were always refurbished and ended up breaking again within a month.. this was 2 years ago)
Alienware, though cool and a reputable brand overcharges.
You will not need an 8 core, and nor do I believe the Bulldozer will release without issues on its first round of those CPU's. For video editing (the key piece to my recommending this option) and gaming, I would look to the 6 core AMD's as they are built specifically for the latter purpose.
If you have any other questions on what you should get in terms of parts, either post here or feel free to shoot me a PM. Newegg is the best in terms of parts, great customer service, and amazing bundle deals.