You'l be fine with that board mate, I can't see you having any problems at all.. I think you've been told a load of bs personally
The P4C800 is an extremly popular board
Seriousley though, I think going the AMD route would be far better.. I'm almost certain your going to be wanting it for gaming & there is a marked improvement on benchmarks with the A64 compared with its P4 pressy or northwood equivilent. Don't let a few bad experiances turn you away from them. Another issue's overclocking.. yeah people have got pressy's up to 3.6ghz on air, but only if you mind it running at 70 odd degrees
Anyway, if your stuck to Pentium then that board and processor is fine. Go and order it