What are your favorite non-standard builds? D2PK has made it possible for me to test out a lot of builds that were either too expensive on vanilla, or only effective in very certain scenarios, or could only be made with perfect/hard to obtain gear. Some of my favorites:
Infinity TS sorc
Infinity CB sorc
Poison arrow barbarian
Poison arrow/smite paladin
Bear zon
Maul bear druid
Firewall sorc
If anyone wants a rundown on (almost) any of these characters, ask and I just might post/message a brief guide.