Been listening to this Internet Radio station a lot.
http://www.radioio.com/radioioambient.php
I use iTunes to listen to it but it works with anything.
Besides that these are in my gym's playlist
One Word (Album Version) Kelly Osbourne
Joy Staxx Of Joy
Banjo Thing (Featuring Red$tar) Infernal
Keen On Disco Infernal
Welcome To Africa (Technopunk RMX) Paffendorf
Gimme! Gimme! Gimme! DJ Andersson & Lindstrom
You Make Me Feel (Mighty Real) Byron Stingily
Dirty Cash Stevie V
California Dreamin' (Tek-House Extended Mix) Royal Gigolos
Damage (Original Mix) Joshua Ryan vs Stillife