Iannis, for 2x1gb o recomend the Transcend AxeRam 1200+. For 2x2GB I recomend the GSkill 8500 PK or the 8800 PI.

gurusan, very nice too men

I won't OC my CPU furder because the voltage needed doesn't seems to compensate. I remember that this is my 24/7 daily config