Help w/ OC E6300 and DS3

Sorry, but I'm a total n00b at OCing a CPU. I'm trying to OC my E6300 to around 2.6Ghz to start at least.

Setup:
E6300
Gigabyte P965-DS3
Leadtek 7900GT
2 1-gig sticks of Corsair XMS2 DDR2 6400 (800 Mhz)
Running 28C idle, 39C full load on both cores
*Edit* I do have the latest drivers for my cards and the latest F3 BIOS

The board comes with EasyTune...but I tried using the BIOS first. If I move my FSB up by even 10 Mhz, it reboots funny, and/or loses the setting, or crashes into bootloop. If I try using the EasyTune in Windows, it crashes. So far I've tried boosting the cpu voltage, dimm voltage, and FSB even just a little and it still doesn't boot.

I can boost a bunch of diff. voltages in BIOS...But I didn't know what half of them are:
DIMM Voltage - PCI-E Voltage - FSB Voltage - (G)mch Voltage - CPU Voltage -

If anyone could please help it'd be much appreciated...I've never been able to not OC even a lousy 10 Mhz before so I'm very surprised. Please let me know thanks!