I'll start this one...
Gym Class Heroes < They are like a reincarnation of The Roots, but with more of the N.E.R.D. groove. Listen to "New Friend Request"
Young Love < A guitar-driven dance band from New York, definitely something to watch out for in the coming months! Listen to their single "Discotech".
Men, Women and Children < Six guys (including Todd Weinstock of Glassjaw) vent their passion for the B-52's, boogie-era Michael Jackson, and Scissor Sisters. Listen to "Photosynthesis" and "Dance In My Blood"
The Sleeping < It's like having Glassjaw hooked on The Academy Is... Listen to "Don't Hold Back".
Please post your other recommends here!!! Thanks!!!