Hello everyone, I'm planning on building a new computer and would like comments and suggestions on parts and compatibility. I would also like to say that I have never built a computer in the past so I'm a "noob" at this. I don't really want to spend any more money and I would also like to keep a motherboard that has CrossFire in case I want to use two video cards.
Here the build...

ASUS P5Q Pro LGA 775 Intel P45 ATX Intel Motherboard
http://www.newegg.com/Product/Prod [...] 6813131299

Intel Core 2 Quad Q9300 Yorkfield 2.5GHz 6MB L2 Cache LGA 775 95W Quad-Core Processor
http://www.newegg.com/Product/Prod [...] 6819115043

Radeon HD 4870 (not sure which brand I should get)
Might get another one on CrossFire later.

G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory
http://www.newegg.com/Product/Prod [...] 6820231122
Probably will get 4 more later.

Western Digital Caviar SE16 WD6400AAKS 640GB 7200 RPM 16MB Cache SATA 3.0Gb/s Hard Drive
http://www.newegg.com/Product/Prod [...] 6822136218

Sony NEC Optiarc Black 16X DVD-ROM 48X CD-ROM IDE DVD-ROM Drive Model DDU1615/B2s
http://www.newegg.com/Product/Prod [...] 6827101131

Microsoft Windows Vista Home Premium SP1 64-bit English for System Builders 1pk DSP OEI DVD
http://www.newegg.com/Product/Prod [...] 6832116488

Antec Nine Hundred Black Steel ATX Mid Tower Computer Case
http://www.newegg.com/Product/Prod [...] ntec%2b900

Antec TPQ-850 850W ATX12V / EPS12V Power Supply 100 - 240 V UL, CUL, FCC, TUV, CE, C-tick, CCC, CB
http://www.newegg.com/Product/Prod [...] 6817371009
Get $30 discount with antec 900 and the PSU on Newegg.

Need a monitor also, Anyone got any suggestions?

I would also like to add that i have never overclocked a computer in the past, if anyone would like to give me suggestions on overclocking that would be much appreciated.

1. the graphics cards dont really change according to manufacturer i.e sapphire and Powercolour. what does change is things like warranty and price may differ by a couple 10's of pounds.

2. moniter depends on gaming. im going to assume tht u game alot and want a moniter tht does your system justice.

a poor moniter and u might aswell not spend all tht money on a top spec GPU so i would suggest something like:

http://www.overclockers.co.uk/show [...] 0-%20White

and as for overclocking goes COOLING is your main objective sometimes standard case fans can be good at cooling but very LOUD!!!

replace them with better fans that cool better and dont make such a big noise.

and dnt even think about using the stock cooler with your yorkfield try a zalman or an ASUS

http://www.overclockers.co.uk/prod [...] 21&mfrid=1

http://www.overclockers.co.uk/prod [...] 1&mfrid=25

the same with your GPU get one tht has an upgraded fan.

they may not look to great but will help keep temps down and your overclock high

Get a SATA burner, not the IDE one you have linked
the antec 300 also has the $30 discount on the power supply
http://www.newegg.com/Product/Prod [...] 6811129042

Spend another $20 and get an x38 motherboard. Two full x16 lanes and great overclocking.
http://www.newegg.com/Product/Prod [...] 6813136045

Buy this cooler and bracket:
http://www.newegg.com/Product/Prod [...] &Tpk=s1283
http://www.newegg.com/Product/Prod [...] 6835233019
Maybe add some Arctic Silver thermal paste.

Check fatwallet.com and slickdeals.net for best prices. People always post promo codes for an additional $20+ off.

You're never going to use over 4gb unless you do lots of high-res photo/video editing.

Buy two of them, one for Windows and another for games. The system will be much more responsive and games will load very fast.

Great case when it's on sale/rebate for $70-80, but at $119, I would rather have a Lian Li aluminum.

Buy.com has the best prices on Corsair PSU's, which I would rate above Antec.:
http://www.buy.com/prod/corsair-tx [...] 78325.html

Go for a 24" since they have full HD res (1900x1200).
http://www.newegg.com/Product/Prod [...] rder=PRICE