Need help building a new gaming pc

Well, I'm planning on building a new pc, which would be used mostly for gaming purposes and my budget would be around $1000, including monitor. I'm not an expert on this, so I need your suggestions. About the processor, I was thinking on the Intel Core 2 Duo E8500 with an ASUS motherboard. Oh, and I want a monitor not bigger than 20'', due to the size of my desk. I'll be ordering this from the US. Hope you can help me.

Intel Core2 Quad Q9400 2.66GHz LGA 775 95W Quad-Core Processor Model BX80580Q9400 - Retail

GIGABYTE GA-EP45-UD3R LGA 775 Intel P45 ATX Intel Motherboard - Retail

Kingston 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model KVR800D2K2/4GR - Retail

XFX HD-489A-ZDFC Radeon HD 4890 1GB 256-bit DDR5 PCI Express 2.0 x16 HDCP Ready Video Card - Retail

Seagate Barracuda 7200.12 ST3500418AS 500GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM

CORSAIR CMPSU-650TX 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 Power Supply - Retail

Acer X193Wb Black 19" 5ms Widescreen LCD Monitor - Retail

Antec Three Hundred Black Steel ATX Mid Tower Computer Case - Retail

LOGISYS Computer CF120BL 120mm BLUE 4 LED LED Case Fan - Retail(2)

=$973.86 before rebates

Intel Core2 Quad Q9400 2.66GHz LGA 775 95W Quad-Core Processor Model BX80580Q9400 - Retail

GIGABYTE GA-EP45-UD3R LGA 775 Intel P45 ATX Intel Motherboard - Retail

Kingston 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model KVR800D2K2/4GR - Retail

XFX HD-489A-ZDFC Radeon HD 4890 1GB 256-bit DDR5 PCI Express 2.0 x16 HDCP Ready Video Card - Retail

Seagate Barracuda 7200.12 ST3500418AS 500GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM

CORSAIR CMPSU-650TX 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 Power Supply - Retail

Acer X193Wb Black 19" 5ms Widescreen LCD Monitor - Retail

Antec Three Hundred Black Steel ATX Mid Tower Computer Case - Retail

LOGISYS Computer CF120BL 120mm BLUE 4 LED LED Case Fan - Retail(2)

=$973.86 before rebates

Tagerh

he didnt ask for one :P and dvd drive, i thik h ecan find his own.

No, I already have the DVD drive and the OP. And that does look like a good build, so thanks.

Can A regular computer hold a certain amount of RAM? or is it like how many ever slots you have thats how much RAM you can put into your computer?v-bripaul

Your motherboard spec's will tell you how much RAM it can support and what type. For instance my EP45-DQ6 has 4 slots capable of hold 16GB of DDR2 RAM. Still, you are further limited by your OS as if you are using Vista 32bit you will only see about 3GB's of RAM, the 64bit OS doesn't have that problem.

So how exactly do I check my motherboard specs?