After reading this forum for about 2 weeks, finally decided to jump to overclocking. In fact its about time to ditch my Celeron.
So went out and bought P4 1.6a, Abit BD7, Samsung DDR 2700.
Successfully done it to 2.64 Ghz, 3:4 mem freg. at 1.7 Vcore.
Thanks to this forum for useful info......
Vince