I found that the heat curing Super Sculpey wasn't for me, so I need to look else where for an alternative.
Apoxie Sculpt is infinitely more affordable, with the trade-off of it being slightly less accessible (Milliput can be found in some hardware stores, while AS is online-only). Overall, AS has generally excellent qualities for custom work.
Apoxie Sculpt all the way man. I actually get mine from my local hobby shop. The good ones do carry it, but they are very good with their customer service if you buy from them online....I believe it is Aves.com, not sure though.