excellent question!
i'm often looking for jobs as a designer (for sites or cd roms, with graphics and html, or flash, etc, etc). tho, mostly, always looking for better full-time jobs, rather than contract like you (tho that'd be nice, as well!

)
i've used:
monster.com
hotjobs.com
dice.com
and yahoo has a section off their site, as well (tho i forget the link ... classifieds.yahoo.com/web/ -- something like that, i believe).