This is one of the best uv mapping programmes i have come across, it supports mulipile formats with over 50 plugins available, for those who would prefer to use stock models from games such as armada, botf, sfc, or a great many others then this is the one for converting between formats.
I use this for uv mapping my models and prefer it to max`s uv mapping system. Dafedz has told me he also uses this for uv mapping and he uses lightwave for his meshs.
their is a demo but you cannot save with it, however it is cheap to purchase.
http://www.unwrap3d.com/index.aspx