I've flashed this custom ROM called Gingerbread_2.3.3_v2- or something...
it's supposed to just have root and oc availability due to using francokernel...
BUT, I've having some troubles... before this, I was using stock Froyo with some kernel for oc...
So, for me now, its hard to see that some apps makes FC for no reason o__o
and screen glitches o__o
That sucks...
I would recommend you to flash the official rom and wait until root via some app, like in Froyo. And oc is not necessary, the phone works better than Froyo itself.
(ps. I don't play games or demanding stuff, I dont give a duck the benchmarks and crap)