Could use some advice on a tight budget gaming system...

I'm purchasing this system (I customized it off their site) from a VERY reputable local dealer in my area whom I have purchased my last 2 systems from. Since I have a limited budget, my goal is to try and max out the best gaming system possible for my budget. I would really appreciate any advice/recommendations or just that my system looks good for my budget range and that I should go for it as is.

So here's the system I have customized:

Processor : Intel Core 2 Duo Processor E6300 1.86GHz
CPU Heatsink / Fan : Intel Retail Heatsink and Fan
Motherboard : MSI P965 Platinum
Memory : Kingston 1GB PC2-5300 DDR2 SDRAM Kit (2 x 512MB )
Case : Antec Sonata II
Power Supplies : Antec 450W SmartPower 2.0
Hard Drives 1 : Seagate 160GB Barracuda 7200.9 SATA II w/ NCQ, 8MB
Hard Drives 2 : Seagate 160GB Barracuda 7200.9 SATA II w/ NCQ, 8MB
Optical Drive 1 : LG 16X DVD-ROM (OEM)
Video Cards : eVGA e-GeForce 8800 GTX 768MB PCI-E
Sound Cards : Onboard 8-Channel 7.1 Audio
Ethernet Cards : Onboard 100/1000 Gigabit Lan
Operating System : Windows Vista Home Premium (32-bit) DVD, OEM
Office Ready PC : Microsoft Office Ready Pre-installed

Thanks in advance for any help provided.

Two things I see that could be better and one that is overkill.
You really need a better power supply. The graphics card you chose need more power then most and with 4 drives, you are cutting it too tight. Add $25 for a 600W.
You will need 2 gigs of RAM, the newer games are starting to use more and Vista works better with 2 Gigs (2x1GB) sticks.
The Video card is probably the best one out right now. You do not need all the memory, you could get 2 8800 320mb for that price. Get one now and put the money on the above items.

Hi first of all welcome to the forums

look here is the thing money is precious so no need to use it where you cant see the full benefits of the investment.

8800 gtx= 550 dollars

8800 gts320mb= 300 dollars saving of 150 dollars which you can use in the ram and PSU

get the 8800 GTX ONLY IF you have a 30 inch monitor otherwise its a waste also you need a Top end Cpu to benefit from its full power .

If you are gaming in 1600x1200 or less than 1920 then you Dont need the GtX the increase in performance in these resolutions is not worth the extra money.

You will be very happy with a Gts 320 mb with the rest of your configuration.

Thanks for the warm welcome That is very true what you just said. I don't need that card for what little gains I'll get (monitor is a WS 22" ) so a GTS should suffice. What ram/psu should I put in place then? Should I get the Superclocked GTS 320MB card or regular one? Do I still need alot of PSU for a GTS now?

Awesome - thanks for the links. I've re-configured slightly. Upped the processor, and ram and have about $100 to spend still. Any areas I should consider upping slash? New system:

Processor : Intel Core™2 Duo Processor E6400 2.13GHz
CPU Heatsink / Fan : Intel Retail Heatsink and Fan
Motherboards : MSI P965 Platinum
Memory : OCZ 2GB PC2-6400 Gold Gamer eXtreme XTC Edition DDR2
Case : Antec Sonata II w/ 450W SmartPower 2.0
Power Supplies : Antec 450W SmartPower 2.0 Power Supply with Case
Hard Drives 1 : Seagate 160GB Barracuda 7200.9 SATA II w/ NCQ, 8MB
Hard Drives 2 : Seagate 160GB Barracuda 7200.9 SATA II w/ NCQ, 8MB
Optical Drive 1 : LG 16X DVD-ROM, Black (OEM) 1 $24.95 $24.95
Video Cards : eVGA e-GeForce 8800 GTS 320MB SuperClocked
Sound Cards : Onboard 8-Channel 7.1 Audio
Ethernet Cards : Onboard 100/1000 Gigabit Lan
Operating System : Microsoft Windows Vista Home Premium (32-bit) OEM
Office Ready PC : Microsoft Office Ready Pre-installed (w/ Systems Only)

Thanks again for the help guys.

I wish I could return the favor