Go for some of that 1000 or 1066 and 2x2G while the prices are still low and availability is good. Vista chunks down a good 750M on a 2G system leaving only about 1G. If you are running the Dist Apps then thing will start bumping around when you use the system for other apps also. The difference is hardly noticed on fast drives but on a slower Allendale and a single PATA drive I can tell.
You do want the faster ram over lower latency as we have stated in other sub forums. The speed of transfer is more advantageous than reducing the wait states at a lower speed.
