It was already posted somewhere on this forum some weeks or months in the past, but I'll do it again anyway:
Those sites have a varying amount of great or not so great bits from most of the ranges for an OK price. So you might want to look there. I think the first one even offers some plague monks, but you should be quick as most of the stuff seems to sell out rather fast.
As for dwarves, I've got some left over from the Battle for the Skull Pass boxed set.
And for Orcs and Goblins, guess what, I've got some Gobbos from the aforementioned boxed set. And a number of both Orcs with two hand weapons and archers from the 6th edition starters boxed set. Oh, and some plastic Black Orcs (already assembled), too. So if you're interested. I live in Wittenberg, though, so shipping might cost a bit, but I'd say it won't be much of an issue as plastic parts are not that heavy.