May:
Xanthic Eye - You HAVE to check out this site! The best designed site I have ever laid eyes upon and it has OS X themes, icons, and other goodies to boot!

February:
Warrior~poet - This site is full of talent: Desktops, Icons, and more. This site also was the runner up for Pixelpalooza 2003 contest (OSX category). Check 'em out.

January:
Everaldo.com - This is a website created by Everaldo Coelho that showcases some of his outstanding work. My personal favorite is a system replacement set called "Outline".