The specs are:
- Intel Core 2 Quad with each core @ 2.4 Ghz (aftermarket Arctic Cooling fan)
- 4GB of Corsair XMS RAM
- eVGA nVidia 8600 GTS video card
- Abit IP35 Pro Motherboard
- Western Digital 150GB Raptor X (sata)
- Western Digital 320GB (sata)
- Samsung DVD Burner (sata)
- Lite-On DVD Reader (sata)
- Cooler Master Case (black)
- Thermaltake 700W power supply
As I mentioned in the title, I am running the 64-bit version of Windows. If you are buying all new hardware anyway, you should run a 64-bit operating system. There is definitely a bit of a performance increase and, in my case, is required since have 4 GB of RAM. Coding Horror has a detailed post on why you can't utilize 4 GB of RAM on a 32-bit system but it's a little confusing still.
Basically a 32-bit system means you have 32 bits to address data. A bit is the smallest amount of data in a computer, either a one or a zero. So the biggest number possible is 232 or 4,294,967,296. Memory is addressed in bytes (8 bits) so the maximum memory is 4,294,967,296 bytes or 4 gigabytes (huh?).
So why can't you use 4 gigbytes of memory? This maximum is the amount of memory you can address total, not just system memory. Of your 4 GBs, the first MB is for legacy DOS, BIOS and old add-in cards. Then there is a section for your motherboard, flash memory, video memory and all other devices. If you have a newer video card with 512 MB of memory, that is 1/8th of your address space right there! Your system memory is the last thing to get addressed so whatever is left is the amount of RAM your OS and programs get to use; usually around 3 - 3.5 gigabytes.
There are some older hacks to get around this but the best way is to use 64-bit hardware and OS.