thanks Conroe for helping... I guess I may not need much OC, so the upper limit of a Asrock Dual at 300 FSB will be good enough for now... (at least there's no wonder board that does well on OC and costs less than $150)
Now my concern like others is, do I need a Conroe? I just calculated that I can get a X2 3800+ and OC it to 3ghz and may still run faster then a Conroe running at around 2.5ghz... epecially I don't use it to play games... instead I only use it for multitasking... watching videos, downloading, surfing, buring CDs, cleaning up my system and virus scan all at the same time... sometimes decode DVDs... with that type of work... will an OC X2 be sufficient... or Conroe will still make a big difference? Thanks for help!