I love my Le Creuset. They heat evenly, clean effortlessly and wear beautifully. I've got a few sizes of stock pots, a couple casseroles and some fry pans and a grill pan. I use them daily, they've never chipped or warped.
I got a couple open stock stainless pans at Macy's - their brand 'Tools of the Trade'. They won't last forever, but they've held up well.
Keep an eye out for a All-Clad on sale, I got a great stainless windsor pot that's a dream for making sauces.
I've never found a set of anything that I've ever liked, there are always pieces I'll never use or something missing I just have to have. It's usually a better value to get only the pieces you need.