I often find that if the rise of the jeans is too long, that'll also have a flattening effect.
My favorites were Levi 508's, but they're out of production. The best I've found now are RSQ London Skinny, available in both jeans and chino's. They have a short rise and are fairly ample in the hips. Not good if you're looking for a VPL, but gives a nice bulge. a number of guys have told me I fill them very well ;-)
I like Nastypig.com, but couldn't tell you about their jeans. One place I've found is inseamclothing.com. It's very similar to NastyPig but seems geared toward guys who are a bit older and need to dress "business casual".