Thanks you guys so much for your help, i really appreciate it. I have tried the things so far except for the "booot to memtest" because i don't have a burner or a floppy to try that with yet. I did every thing else: clean contacts, reseat, try different slots, etc, etc.
Here is my system configuration:
Motherboard: GIGABYTE GA-965P-S3 Socket T
Processor: Intel Core 2 Duo E6400 2.13 2M L2 (8x Multiplier)
Heatsink: Thermaltake Big Typhoon 120mm
Ram: Corsair XMS2 1 GB (2x512MB) DDR2-800 5-5-5-15
Hard Drive: Western Digital Caviar SE SATA 250 GB
Artic Silver 5 Thermal Compound
Video Card: geforce 6700 biostar (which i replaced with a ati rage card to see if the video card was bad, since i am still getting reboots I think the card is NOT the problem)
PSU: generic 500 watt that came with the case. cheap.
I attached my recent minidumps. Any ideas?