I'm responding to first post...
I'm not liking the case, though that's personal preference. The included power supply is likely crap. Motherboard could be much better--Intel-made boards can't overclock, not to mention G33 is not exactly the best. I recommend you look at P35 motherboards (Abit IP35-E is very good at OC'ing Q6600s). I don't know if TigerDirect has them, but the IP35-E is third to some $200 Asus board and the Abit IP35 Pro. Anyways... next thing--good processor, you will need cooling and likely thermal grease. I'm not sure I'm really liking the Radeon x1950 Pro, but it's good if you aren't ever going to Vista. I'd say the hard drive is a little small and I don't exactly trust Maxtor (compared to WD and Seagate)... it's IDE, though should probably be SATA. DVD burner is fine, though I'd go with a SATA burner as well. You won't need that much RAM if you don't use a 64-bit OS. I'd say a max of 3.5GB with that graphics card... 3 1GB modules and 1 512MB module would run you the least. Ugly PCI-bracket fans but whatever--its your choice on that. Finally, the CPU cooler is crap.
The points...
1) I'd recommend a different case
2) You need a better power supply. To check required wattage, you can use
this utility.
3) Motherboard is crap, like you heard. P35 would be much better, especially an Abit IP35-E
4) Get a SATA hard drive
5) Get a SATA optical drive
6) You don't need that much RAM
7) You need better processor cooling
Next, on the second setup ((Bloodeagle))... I'd recommend straying from AMD for your current budget--they're power hogs and will cost ya in the long run. As for the Intel setup, the nForce 570 SLI chipset is outdated (replaced by nForce 650i SLI), and the processor is also considered outdated (replaced by the E6550 or E6750). The case is fine, first and second power supplies are horrible. You can find a suitable power supply by
this listing. Good hard drive, the first graphics card isn't as good as the original Radeon x1950 pro, but it should be close. I'd say the 8600GTS is a bad deal, even now. An 8800GTS 320 would be much better and not for much more. The third is fine if you want to burn that much money.
Here's my recommendations for a build...
P35 motherboard (Abit IP35-E)
Intel Core 2 Quad Q6600, 6750, or E6850
3GB max of RAM
GeForce 8800GTS 320MB graphics card
Any case you really want
SATA DVD burner
SATA 320+GB hard drive (I am wishing I had a bigger drive--my 80GB has about 10GB left to fill... I exceeded my previous 8GB drive's usage (4GB) by about 18x in 5 years)
Themaltake Purepower 500W power supply
A better cooler, such as a Cooler Master Hyper TX2 or Gemini, a number of better coolers can be found in Anandtech articles