I'm going to purchase an Epox 8K5A2+ board, an XP 1800 which I would like to over clock, and most likely 512 pc2x00. Do the performance gains of pc2700 over 2100 outweigh the price difference? Also would it behoove me to go with a formitable brand name like corsair to make sure I can oc the cpu, or would I see similar results from a brand like kingston or samsung? thanks in advance.