Re Jeans for Pear Shapes, try Miss Selfridge's Dark Wide Leg Jeans. I find a lot of wide leg jeans were still too tight around the bum and thighs, and found these ones fit really well. They are reasonably priced at 35 pounds too.

Personally, get the jeans you are most comfy in, and then buy some longer tops to go over the hips. Works wonders. As the wide leg jeans can be 'unflattering' (don't think thats a real world), esp if you're not that tall. Whereas a longer top, breaks up the body and legs, and gives the appearance of some height. i.e some nice bootcuts.

Rgds
Sarah