@Taz, for artists a place like Rugatu is great, because they have the assurance of getting paid for their work, so I recommend you trying it out and you will be amazed with the received feedback and art.

We had our logo made by some awesome artists that signed up with us right away. They realized that making profit for their work just got easier.
Here is the contest of our logo http://www.rugatu.com/questions/452/can-you-pimp-rugatus-logo