If you need some pictures, check out Men's Fashion and Trends on men.style.com

There's a drop down box where you can select a designer and view the entire collection from any season starting in Spring '05. If you need skinny guys, some of big ones to check would be Jil Sander, Prada, Lanvin, Dior Homme, J. Lindeberg, Hermes, or Helmut Lang, though there are many more, those are just the ones off the top of my head.