With Bulldozer shipping this week, and due for commercial release in 3 weeks, I'd avoid both the 880 and the 1090t. Go with a Phenom II X4 955, or even an Athlon II X4 640, depending on how soon you want to get bulldozer
get a 970 or 990 motherboard to be ready for bulldozer, or just wait for it in the first place.
don't get an hec power supply. Antec, Corsair, XFX, Xigmatek, SeaSonic, between 400 and 600W with 80+ Bronze cert is a better choice. 550-650 if you want crossfire.
After I typed a nice reply while this was in the CPU section they moved it and it wouldnt post.
This is not a good build.
Dump the hec PSU. Get somethng good like corsair builders series.
Dump the 1090T. if you're willing to spend that much money and can't wait to see how BullDozer performs then get the i5-2500k which means dumping the motherboard you had picked out. You will need a p67 or Z68 to OC that i5.
On the ram, stick with 1.5V stuff. Mushkin has some cas7 stick for less but that blue kingston you picked out stuff comes in 1.5v flavor also.
Wow just effing great, see I'm 15 and my dad PROMISED to buy me this rig, now like always, he, at the last second says no. you dont know how fking pissed i am. And i cant buy it myself, cause I dont have a job and dont get allowance. I only get like 10 bucks every 2 weeks or something -.-.