Im going to build following Gaming Computer, please give me some opinions or comments, thanks !
CPU : AMD Phenom II X4 945
Motherboard : GIGABYTE GA-770TA-UD3
RAM : G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Model F3-10666CL9D-4GBNQ
Video Card : XFX HD-577X-ZNFC Radeon HD 5770
Hard Drive : Western Digital Caviar Blue WD6400AAKS 640GB
Power Supply : CORSAIR CMPSU-450VX 450W
DVD Burner : LITE-ON Black 24X iHAS-324-98
CASE : Thermaltake V3 Black Edition VL80001W2Z Black SECC
Monitor : ASUS VH198T Black
Keyboard : Rosewill RK-7300 Black
how much will this cost in walk-in stores ?
is PSU 450W enough ??
PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard 450 Watt or greater power supply with one 75W 6-pin PCI Express® power connectors recommended (600 Watt and two 6-pin connectors for ATI CrossFireX™ technology in dual mode)
Certified power supplies are recommended. Refer to http://ati.amd.com/certifiedPSU for a list of Certified products
Minimum 1GB of system memory
Installation software requires CD-ROM drive
DVD playback requires DVD drive
Blu-ray™ playback requires Blu-ray drive
For an ATI CrossFireX™ system, a second ATI Radeon™ HD 5770 graphics card, an ATI CrossFireX Ready motherboard and one ATI CrossFireX Bridge Interconnect cable per graphics card (included) are required
The recommended PSU is for the entire system. I would go for a little more, 500W PSU. This Corsair 550W or Antec 550W are good PSUs.
That depends on where you actually live. If you are in some big American city then you might have access to some very competitive stores. I live in Canada on an island on the west coast so do just about all of my computer shopping on-line, mostly Newegg.ca.
The 450 w power supply is the minimum for that video card a little larger wouldn't hurt. I would also suggest a lower Cas no. for your Ram. look at this.
Get a 500W, you don't want your new PSU at its limits - As a PSU ages it can produce less juice which means without knowing it your machine can start to get underpowered which can damage things.
The price difference between a 450W and a 500W should be very minimal