Opinions on these specs for wow on ultra or high

[tombomb32]

-Intel Core 2 Quad 2.66GHZ (1066 Bus speed 8M cache) Extreme Edition Processor
-ASUS P5KPL-AM EPU Motherboard 
-8GB (2x2GB Dual Channel 4GB Virtual Memory) OCZ DDR2 PC-8500 1066Mhz Titanium Series Ram Memory w/ Heatsink
-Nvidia Geforce GT545 GDDR5 Graphics card
-BFG 550 Watts Modular Power supply
-Western Digital Blue Caviar 500GB Hard Drive (7200RPM 16MB cache)
-DVD/CD Re-Writable Disc Drive
-Galaxis Gaming Case w/ 4 blue LED 120mm fan (1 top-mounted, 1 rear and 1 front Hard Drive cooler, 1 bottom-mounted) and one oversized 180mm side fan (also blue LED)
-ASUSTeK Computer 82801G (ICH7 Family) High Definition Audio Controller
-Vindows 7 Home 64-Bit

 

[DarkSable]

Should be good, but those are old parts - just keep that in mind so you don't pay too much for it.