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.