There are a number of very talented artists that are willing to do freelance work if approached and asked over at Renderosity
You'd have to get a free account and wade through the gazillion artists and view a lot of their work, but once someone catches your eye just send them a private message and see how they respond.
I have also seen people post logo design jobs over at rent-a-coder
. So that might be a good place to find people to do a logo at a good price, too.