I picked up a bunch of Dreamblade, even before the line was cancelled, but only for generic fantasy monsters, so i was pretty picky about which ones i wanted. As others have mentioned, removing them from the base is extremely difficult and dangerous, so for Large ones, i just paint the base black and leave it at that. For medium figures...well, if it's just feet attached, that's not too hard to cut off. If it's a significant amount of plastic attached, i wouldn't even bother.
Still, i have to say that although much of the set was too "weird" for D&D, they had a lot of really standout models. There was this truly awesome 2 or three headed giant that would make a great fomorian.