Would this be Ok??

i would suggest the new 45nm E8400 CPU instead of the 65nm E6750. the E8400 is around $215 or so.

if you do not plan to do RAID or run two graphics cards in SLI, i would suggest the cheaper GA-P35-DS3L motherboard which is highly rated and costs $110 or so.

the antec 900 case was on sale a week ago for $70.

im not sure how much benefit pc2 8500 memory is over the usual pc2 6400 800MHz memory which is cheaper.

if you go with XP 32 bit, 2 gb of memory is fine (max is 3), but if you go with XP Pro 64 bit, I would suggest getting 4gb of memory since more memory is usually more important than faster memory. but since memory is so cheap, why not get more and faster memory.

also, if you plan to overclock, which is not hard to do (read the sticky in the overclock section), you may want to get an aftermarket cooler (zalman 9700 is popular, thermalright 120-ultra extreme is the most expensive but runs the coolest). Also, look for suggestions for parts that are overclock friendly. for example, the antec 900 case is very overclock friendly, as is crucial ballistix RAM.

nice PSU.

The number in PC2-xxxx refers to the bandwidth, and in general DDR2 800 PC6400 translates to

400MHZ with a maximum bandwidth of 6,400 MB\s

So to find the clock speed of ram you divide the number in half, this is true to DDR, DDR2, and DDR3.

So we see a minute benefit of going with pc2 8500 if the ram had the same timings.

Now I know personally that the PC6400 ram has some great timings available, and they make a world of difference if you have poor timings.

It has been a while since I read about memory, so I could be wrong about the DDR2 and DDR3 clock speeds.. but I do know that it holds true to the original DDR memory modules.

He is right! I wouldn't build a rig with out that cpu cooler... even if I was going watercooled I would buy one as a backup and keep it in a closet for emergencies.

pc2-8500 is ddr2-1066 - the point i am trying to make is that 1066 is overkill because you can push an E8400 to 4GHz with DDR2-800 that you OC to 890, or you can push it to 3.6GHz with DDR2-800 at 800. It does not hurt to buy 1066, but I would rather get 800 and use the money saved toward a CPU cooler or other goodies.

Stock:
Data Rate = 1333 MBytes/sec
FSB = 1333 / 4 = 333.25 MTransfers/sec (you divide by 4 since the FSB is quad pumped = 4 transfers per clock cycle)
CPU speed = 9 x FSB = 2999.25 GHz
RAM speed = 2 x FSB = 666.50 GHz

OC a little:
Data Rate = 1600 MBytes/sec
FSB = 1600 / 4 = 400 MTransfers/sec (you divide by 4 since the FSB is quad pumped = 4 transfers per clock cycle)
CPU speed = 9 x FSB = 3600 GHz
RAM speed = 2 x FSB = 800 GHz

OC a little more:
Data Rate = 1777.77 MBytes/sec
FSB = 1777.77 / 4 = 444.44 MTransfers/sec (you divide by 4 since the FSB is quad pumped = 4 transfers per clock cycle)
CPU speed = 9 x FSB = 4000 GHz
RAM speed = 2 x FSB = 888.88 GHz

Assuming 1:1 FSB:Memory Bus ratio.

8800GTS G92 512MB is about 14% faster than the 8800GT and has a better cooler and overclocks better. Avoid the 8800GTS 320MB and 640MB, those are an older generation and not worth buying any more IMO.

You don't need a floppy drive for XP. I'm using XP and don't have a floppy drive.

Upgradable: that's hard to answer. Let's assume you upgrade in February 2011. You will not be able to use the latest CPUs in that mobo because they will use a different socket, not LGA775. The latest video cards will be PCI-E 2.0 or 3.0. They will (probably) work in that motherboard, but slower than they would in a PCI-E 2.0 slot. My guess is you'd want a new motherboard at that point too. All you can really do is get a good PSU that will be able to handle even the video cards of 2011, so you can reuse it. That Silencer is a great choice. You could also get a big case, because video cards of the future will (probably) be bigger even than today's 8800GTX and may not fit in today's mid-tower cases.

do not get the E6750. for the same price, the E8400 is faster (3.00 ghz vs 2.66), and will last longer, not to mention it is more efficient... it basically is much better...

later down the line you will thank yourself for not getting an older, slower processor