I particularly like this pair from Diane Von Furstenberg:
Check out this awesome spread from Marie France magazine--March issue:
As far as tops go, you should pair your slouchy, full pants with a fitted tee or blouse--even a fitted blazer will work.
Some other Smarty Pants for Spring 2010:
Oscar de la Renta
Ok, first of all, this entire look is fashion heaven. ODLR is genius.
Alice + Olivia
LOVE these pants. The Zen Pant $275 (a steal!)
The little bolero/shrug sweater or jacket also looks great with this pant