Help: My workout tunes are getting stale

Hey exercise junkies, what do you like to listen to when you're
working out?  I want to change out a bunch of songs and re-invigorate.
 For me most prog doesn't usually mix too well with sweat.  I
generally don't do classical or jazz at the gym either.  Any ideas?

FWIW, my set is mostly straight-ahead and classic rock with some
sprinklings of prog or prog-lite (whatever).  Here's a sampling of a
few that keep me going pretty well:

Porcupine Tree: Blackest Eyes
Black Crowes: Remedy
Blues Traveler: Hook
Chicago: Feeling Stronger Every Day
UFO: Love to Love
Los Lobos: Come on, Let's Go
Fastball: Warm Fuzzy Feeling
Spock's Beard: The Doorway
Kansas: What's on my Mind
Guadalcanal Diary: Jamboree

Dave