Arctic Cooling Freezer Extreme Custom System: System Builders, What Do You Think Of This Hardware Selection?

Custom system: system builders, what do you think of this hardware selection? - arctic cooling freezer extreme

Now some research and worked around Newegg is that:

Intel Core 2 Quad Q9300 Yorkfield 2.5GHz LGA 775 95W Quad-Core Model BX80580Q9300 - Retail $ 270

PVT98FYDDU XFX GeForce 9800 GTX (G92) XXX 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail $ 220

Seagate Barracuda 7200.10 ST3250410AS 250GB 7200 RPM SATA 3.0Gb / s Hard Drive - OEM $ 60

ASUS 20X DVD ± R DVD Burner with LightScribe Black SATA Model DRW-2014L1T - Retail $ 35

ARCTIC COOLING Freezer 7 Pro 92mm CPU Cooler - Retail $ 32

Windows Vista (bla) $ 99

GIGABYTE GA-P35-DS3 Socket 775 Intel P35 ATX Dynamic Energy Saver Ultra Durable II Intel Motherboard - Retail $ 140
(** I was looking for a table, the SLI DDR3-1333 support, but she could not find? **)

Patriot Viper 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Dual Channel Kit Desktop Memory Model PVS34G1333LLK - Retail $ 200

Cooler Master Centurion 534 RC-534-KKN2-GP Black Aluminum and Mesh bezel / SECC Chassis ATX Mid Tower CompuCase B --
And
Cooler Master eXtreme Power RP-550-PCAR 550W ATX from factor 12V V2.01 Power Supply - Retail $ 92

550W enough?

By sending your entire $ 1200, and has a 19 "LCD and speakers, USB mouse, you need a new USB keyboard, but I can not achieve anything.

System integrators, what do you think?