IRQL_NOT_LESS_OR_EQUAL error giving me BSOD on XP install

It's a STOP: 0x0000000A IRQL_NOT_LESS_OR_EQUAL error.

You see, I had Windows running on my PC, but I kept getting these random restarts, so I decided to reformat the hard drive and try a fresh installation. During my fresh installation, I run into a BSOD with the above error. I keep trying and trying and trying to install Windows, but nothing works. I'm really in need of a computer to access the internet, so I pop in a Linux Live CD of Ubuntu, and it worked flawlessly.
Unfortunately, I'd much rather have Windows XP, as I just paid $200 for a new copy of it, and I have BF2, CS:S, WoW, and C&C Generals just waiting to be played.
So anyways, I ran the Memtest that came on my Linux CD, and about 50 minutes through, I had around 180 errors.

This is my build:
Antec Sonata II w/ 450W PSU
BIOSTAR TForce965PT Motherboard
Core 2 Duo e6300 @ stock speeds
eVGA Geforce 7900GS
G.SKILL 1GB DDR2 800 (http://www.newegg.com/Product/Product.asp?item=N82E1682... )
Seagate Barracuda 250Gb
LG 18X DVD±R Super-Multi DVD Burner With 12X DVD-RAM Write
Crappy Floppy Drive
Arctic Cooling Freezer 7 Pro


I'm pretty certain the issue here is not CPU overheating, as that hardly ever goes past 30C (Arctic Silver 5 and Freezer 7 Pro kick ass).
I'm thinking I should definitely RMA that RAM before pay some guy to come to my house for $150/hour to say, "Your RAM is defective."



Any thoughts? Or should I go with the obvious and return the RAM? (and how long does the RMA process take? I was hoping to play some games before winter break ends)