Well i bought Model-2-Sprite and i must say i'm very pleased with how quick it is.
Check out my 5 min results here
dl.dropbox.com/u/44766364/Games/M2S%20Test/index.html
As i have thousands of 3D models this is gonna be great for me as i can't do sprites.
1 problem i found was the export to png isn't working for me, so i export as BMP and load it into the FREE Paint.Net and use the magic wand to remove the background colour, and save as png.