If you have Adobe illustarator or fireworks (or another vector imageing program) then that would be easier for you. Photoshops fine.
Oh, and on stylising them. I'll do that in Adobe Flash as I make the parts.
To get front facing images of the races you need to do a bit of image searching and use your imagination
Working on the Chaos Space Marine at the moment:
http://i122.photobucket.com/albums/o...haosMarine.jpg