They are almost always excruciatingly expensive on eBay, alas; I got my White Hand orcs cheap because they were mislabelled as Ral Partha, I think.
A couple of things worth noting: there are often Julie Guthrie Fantasy Personalities going on eBay for quite reasonable prices (there are a few at under £4 at the moment - probably what they would cost if they were still in production today).
And you can get a classic ex-Grenadier Julie Guthrie giant were-rat (about the size of an old-school rat ogre)
absurdly cheaply from Forlorn Hope. It's a great figure and - naturally - fits right in with the Fantasy Personalities.
Oh - and Mirliton have the two great Julie Guthrie trolls still in production. But for some strange reason, they only sell them in their
15mm goblin army pack (they are 25mm D&D-style trolls!). If you are ordering from them at any point, it might be worth asking if they'd sell you the trolls separately.