Hey there, I am fairly new as well.
I do my own work but, from what I have seen in the past few months, there are many great designers on here.
http://www.zuzanadesigns.com/ does a lot of very nice looking work for many adult sites. There is another adult design studio that really makes some nice work but I forgot their name. I am going to hopefully find it later and post the link. I think its something rocket studio. Very very nice flash work and graphic design.
For now though, check out zuzanna and with any luck someone else may be able to link the other guys.
Best of luck