a letter to the dean is probably the best you can do, as they'll likely talk to the professor, at least, depending on what exactly you say in the letter.
other than that, it doesn't really sound like the prof. is doing anything entirely too wrong, so there's no real justification for a filed cimplaint.

What do you mean, rhetorical question? 1998.5 SVT --> http://www.cardomain.com/ride/2155561/1 #4619 of 6535, born Feb 18, 1998. i'm a smarta$$, don't take it personally