Advice about buying computer

[Vispilotion]

ok, thanks to all for help. here is what i've chosen.

-ram: Kingston 2 x 2 GB PC-6400 800 MHz
-motherboard: Asus AM2 NVIDIA nForce 750a SLI
-proc: AMD Phenom X4 940 Black Edition
-hdd: Hitachi SATA-II 500 GB
-optical device: DVD writer Samsung
-graphic card: ATI Club 3D Radeon HD4850 512 MB

if something is wrong here or you would put in something different just tell me. i just dont know what power to put in... is about 550W enough for this or i need something like 600, 700? and what box would you recommend? thanks

 

[worshipme]

550W is enough as long as the PSU is from a quality manufacturer. What is the make and model?

 

[Vispilotion]

i have choice:

Chieftec 450W ATX2
Trust 425W
LC Power ATX2 2.0 550W
LC Power ATX2 400W

or some more powerful, like...

Hiper ATX 2 680W
Fortron ATX 2 650W

but price is going up as the power...


and yes, do i must buy cooler for proc, motherboard, graphic card or it is in there packed already? (everything is original in the boxes from the manufacturer)

 

[Atomic Rooster]

Of the power supplies you listed, the Fortron 650W is the one I would recommend. Fortron Source/FSP has been producing quality units for many years. I've heard bad things about the LC Power units.

You shouldn't need to buy a cooler as the CPU should have one included. The motherboard and graphics cards have built in coolers for their chips.