ive already oc'd my e4500 to 2.93ghz on this mobo. however would i be able to push it any further because the maxium fsb for the mobo is 1066mhz and that is what my cpu is at already.
Depending on the bios, you sould be able to go beyond 266 MHZ.
If you choose the manual settings, you can probably exceed 266 MHZ.
Check with CPU-Z the actual frequency.
I don't think you can damage motherboards as easily these days - they just won't boot. But, I agree that you should be able to get past 266 - you can probably hit low 300s at least with that board and cpu. Don't be afraid to go up to 1.45 with this chip.
I built almost similar system before and got to 3.5ghz w/o much effort (I believe I used a gigabyte p35 tho...) --
I'd recommend higher fsb and lower multi if you find a speed you want to stick to. my experience, lower mutlis seem to be more stable - but you'll need a really fast mobo.