Hey, thanks heaps, Nihil!
Definitely sounsd like it's going to be worth rebuilding my current box to use this MB and chip then. It should definitely be a faster combination than my existing AthlonXP 2800+.
Although, as you say, I'll probably want to pick up another 512MB of RAM ASAP.
I read that all the RAM slots must be filled either with real RAM chips or with "fillers" that provide some sort of "connection throughput"? Does that sound right to you? I notice that there are 4 modules in the 4 slots, and 2 appear to be RAM modules and 2 are much shallower, and are probably those "filler" modules.
BTW, do you ever sleep?