I really like these Flexees Fat Free shapers.  They're about 1/2 the price of some of the premium shapewear and work better in my opinion.  They won't make you skinny but they do a nice job smoothing the tummy without too much boob squish.  I'm am very well endowed (DDD/F) and unlike a lot of brands, if I get a size L, they have plenty of coverage in the top.  They also have more length than many of the shapers which seem to end right about at the bellybutton.  They still roll up on me but not horribly, and not as much as the others I've tried.  They also hold up well -- wash and wear well, doesn't stretch out, and the fabric doesn't stain either.