New PC Build

[Tanner1274]

Intel Core i7 920 - $270
XFX HD-489X-ZSFC Radeon HD 4890 1GB GDDR5 PCI Express x16 (2.0v) $175 after $20 rebate
G.SKILL Trident 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 2000 (PC3 16000) Triple Channel Kit $194
Western Digital AV WD3200AVJS 320G SATA2 7200rpm $44 x 2 = $88
Asus P6TSE LGA1366 $177 after $20 rebate
SATA Blu-Ray Combo LG $77
Case + Power Supply $205

This is a parts and price list I've made and i have a few questions, is the motherboard compatible with all the other pieces?

is a Kingwin MACH 1 800W Modular PSU enough power supply for the setup?
or could i even get away using a 700W power supply? or less?

Are there any other considerations i should be making?

Any help would be appreciated. Thanks
Tanner

 

[sniperviper21]

a 650W would easily power that set up.

 

[Tanner1274]

How about a 550W? i have asked around but haven't been able to get a definitive answer of the minimum power requirements i would need.
Since i am on a budget i would like to save money in this area if i could.
So anyone know if a 550W will do the trick? Specifically the 550w Acrl. PSU which is included in the case im buying which can be found here:
http://www.xoxide.com/modtek-tbr2500-case-black.html

Thanks for any responses.
Tanner