questions about my first build

[Odouls]

Budget - 600-800
Resolution 1920 x 1080
Games / Settings Desired mainly WoW at ultra , but with a better build i might try other games and med-high
Country - US
Parts that can be reused - XFX Radeon HD 5770 until i can afford a better card
Do you need an OS? yes
Do you need peripherals (e.g. monitor, mouse, keyboard, speakers, etc)? no

here is what i was looking at

MoBo: ASRock Z77 Pro 4
CPU: Intel i5 2500k
RAM: G.Skill 1600MHz 2x4GB
GPU: XFX Radeon 7850
HDD: Samsung Spinpoint F3 500GB
PSU: XFX ProSeries 450W –
DVD: Asus 24X SATA DVD+/-RW
Case: Corsair 300R

microcenter has a sale on the mobo/cpu combo so the mobo would be 59.99 and the i5 would be 159.99 . i just want to know if i can get my desired settings on the lower end of my budget .

[Yalingo]

Hey man, not a bad budget build you found, if you go with the sale you found of Z77 Pro4 LGA 1155 ATX & Core i5 2500K $220

The rest of your build could look something like
G.SKILL Ripjaws Series 8GB (2 x 4GB) $45
XFX Double D FX-785A-CDFC Radeon HD 7850 2GB $270
Western Digital Caviar Black WD5002AALX 500GB $94
Cooler Master eXtreme Power Plus 500w $40
ASUS 24X DVD Burner $20
Windows 7 64bit $99

That adds up to $788 without the case, but those are down to your choice/needs and you can get some decent ones for cheap.

Also keep in mind that you may need to replace the stock cooling on the i5 to maybe something like
COOLER MASTER Hyper 212