I just saw on Engadget that if you hold down the Power/Lock button and the home button it takes a screen capture. It also puts it right there in your gallery. If this has been already posted sorry but thought I would pass it on.
Damn! I thought I looked there...Oh well..I'm glad we can do it with out root.. although I'm still rooted but cool anyways.Yea there is a thread about it in the apps section but thanks works like a charm, wanted to show off my benchmarks to friends.