Something like 100-105 on the rear, 90-95 on the front. The rear bears more weight and therefore flattens out more, so you want more pressure in the rear for similar tyre profiles on the road, innit.
About 120-125 / 110-115 on the track, but that's tubs on super smooth tarmac. Probably more on boards but they haven't let me on at Stratford yet. 
I've read all sorts of things about ''correct'' pressure and I'm not sure there's a correct answer, but generally speaking I think it makes sense to have more in the rear than the front, and also to take into account variables such as tyre size - more pressure in narrower tyres - rider weight, and riding surface. I'd probably take a few psi out for riding in the wet as well.