You will arrive on Side A, level 3. When you get off the tram, you will look for the Side A baggage claim signs....down the escalators to level 2, baggage claim. Grab your bags...as joel said, be watchful....carousels do change. The last time I had to collect bags they changed the carousel and didn't tell us, the flight was still listed on the original carousel board!!! Return to level 3, via escalators or elevators depending on bag size. Look up for the bright, neon Side B sign. There should also be DME signs pointing in the right direction as well. Head over to Side B, take the elevator down to level 1, ground transportation, and walk down to DME. Depending on where you get the elevator/escalator, your walk time will vary. DME is at the very end of the area, past the rental car counters and the Mears counter. There will be signs.
It's actually quite easy.