For the guy asking about clothing for bigger folk, there are plenty of brands out there that still cater to those looking for a "full-fitting"garment. Most of them were not aimed specifically at fat people, but these days, with most mean wearing slimmer clothes, the full fitting stuff just sits or isdedicated to the older consumer. I'm not sure exactly what you're looking for, or how big you are, but just about every designer or brand that I knowof makes XXL's, at least.
For instance, Burberry makes a REALLY big fitting polo, and I believe it goes up to 3XL. Same with Ralph Lauren and Lacoste - that's just for polo-styledshirts.
For jeans, depending on what brand/designer your looking for, you can probably find something, too. I know most trendy jean companies (TR, Seven, etc) only goup to 38 or 40. However, Armani, Burberry, and tons of others make very full-fitting jeans that go into the 40s.
I'm not sure what your budget is, but if you can afford it, go to a high end department store (where the employees might actually know something about whatthey have) and just tell them that you're looking for modern-styled clothes with a fit that can still flatter you. If you don't want to spend a lot ofmoney, just go out to stores that look like they have what you want, and try stuff on until you find something. Since your main issue is fit, it's hard togive much advice over a message board, really.
Good luck with it - hope this helped a little.