For my part I got it from a Magazine quite a while ago. Sorry to say that back issue is sold out. So if you cant find it on a Magazine then you will have to buy it. Latest version is 3.0 costing $399 but there is also a 2.0 SE version witch works for 30 days and cost $99 (Windows and Mac) to buy in case you like it and think it has the features you need. http://www.wondertouch.com/default.asp If you search this forum for Particle Illusion you might find my old posts on it with some examples I did after getting my hands on it.