Looking for advice on computer build

[Eroclives]

I'm looking for advice on computer builds in order to play WoW. I have about $870(US) to spend right now. I haven't ever really built a computer for gaming, so my build I build together is probably garbage.

T925-2426 ::Thermaltake TPX-775M Toughpower XT 775W Power Supply - ATX, 775 Watts, 80PLUS Bronze, SLI Certified, CrossFire Certified, Status LEDs, 140mm Fan

TSD-500AALS ::Western Digital WD5001AALS Caviar Black Hard Drive - 500GB, 7200 rpm, 32MB, SATA-3G

A455-5022 ::Asus DRW-24B1ST 24X Internal DVD Burner - DVD±R 24X, DVD+RW 8X, DVD-RW 6X, DVD±R (DL) 12X, DVD-RAM 12X, CD-R 48X, CD-RW 32X, SATA, 2MB, Black, OEM

C13-8220 ::Corsair XMS3 TW3X4G1333C9AG 4GB Dual Channel DDR3 RAM - - PC10666, 1333MHz, 4096MB (2x 2048MB), 240 Pin, Dual-Channel

A271-5774 ::Sapphire 100283-3L Radeon HD 5770 Video Card - 1GB GDDR5, PCI-Express 2.0, CrossFireX Ready, Dual DVI, Display Port, HDMI

B69-4383 ::ASUS M4A89GTD PRO/USB3 Motherboard and AMD HDT90ZFBRBOX Phenom II 1090T Black Edition Six Core Processor Bundle

C283-1187 ::Cooler Master HAF 932 Full Tower Black Case

Cost: $869.89 right now(with thermal paste, static bracelet and shipping included), but any advice would be great since I'm new to this. It doesn't have to run WoW in Ultra settings, but I'd like it to have decent FPS. The laptop I'm using for WoW right now only gives me 20fps maximum on the lowest settings and its usually anywhere from 3 to 12....so any help would be useful.

[llDemonll]

I'd get a cheaper case (cooler master cm690 / cm692 i like a lot) and spend a bit extra on the gpu. a gtx 460 superclocked will do wonders over the 5770 in the long run

you can also drop to a 650W PSU to save some money if needed. the PSU you selected is pretty good quality, but is overkill in terms of power

[nwo]

That seems a bit overpriced for an AMD build.
Check out this thread and try to configure a similar build because it would perform much better than what you have selected right now.