The mobo is plenty capable with dual cores, not to sure about quads, but i'm sure you could get a 400FSB out of it. I'd just watch the temps of the CPU and have a go tbh.
Should be just a case of ramping up the 'FSB' and 'cpu voltage' in steps, till it goes wibble even with 'highish' vcore, then maybe you might need to increase the NB voltage a tad. If you follow the overclocking sticky you should have a rough guess when this happens. RAM will be fine 1:1.
Just depends on your systems airflow and the coolers effectiveness in your enviroment, the rig looks sound. Read the overclocking stickies and crack on 😉!