Libertine is where I start, usually. I write a lot of bad men.

Lately, I've been using the international version of Roget's available at Bartleby.com. I get connotations there that I don't find in the two Amglish versions at Bartleby, or in my hardcover Roget's.

"Not just a thesaurus, but an anthropological artifact"...hmm. ::story thinking apparatus engages::