That's a good idea - by handling the sales you can get a cut of the profits as your salary. You'd get a truckload of practice on images where not as high a quality is expected. This doesn't mean feel free to make them look bad - it's that no one will expect them to be magazine quality, so when you start getting really good you can use the images as a portfolio to get commercial clients.

Did that make sense...?
-Lew ;-)