I have seen a lot of DA only doing digital file commissions, and I am completely against it. Especially for the prices some of them charge.
As far as reasonable priced artists:
Darryl Banks (prices start around $60-ish for 8.5x11, $80 11x17 1 character no background, $120 11x17 1 character with background)
Mercenary Studios, run by Jake Mackessy, on the thread here:
http://www.statueforum.com/showthread.php?t=127473
several artists from $75-$175. I am long overdue buying one myself.
Karl Altstaetter:
http://www.comicartfans.com/galleryD...asp?GCat=12679
i think he does them for around $200
Cory Hamscher does them starting at $40-$60 for 9x12 and $150+ for 11x17
Thony Silas is reasonable as well. He was having a sale on his DA page, that if you bought something you get 1/2 off a commission or a 2nd piece.
Many others, but I gots to go check the grill outside. LOL