This is my first build check it out, and let me know if I should change anything. The processor and the mb is a bundle from microcenter for $330 with tax.
Okay, just making sure. You would NEVER need a power supply with that big of a wattage unless you are overclocking. Great job dude! If you need help with the actual building, PM me. I'll be able to help you out. You should be fine though. Any other questions?
It's dual channel RAM.... it can't work in "dual channel" if you only have 1 stick and 2, sticks are sold in "matched" pairs .... they are only guaranteed to work when bought as a pair.
As far as the GFX card goes.....the 260x is a about as fast as the 7790 ...which is 33% as fast as a 970 in the table below .... more than anything else, spend ya money on GFX card