I'm thinking about pergo (i have to look at the prices) or maybe just vinyl tile and an area rug. This room will be a kids toy/play room (when we have kids) and a spare bedroom. Carpet is nice on the rest of the basement floor because it makes it more comfortable and we spend a lot of time i the basement. May go pergo and area rugs there too when the time comes.
I know carpet and basements usually don't mix, but as I noted earlier the basement is dry to the point that you never get excessive humidity, condensation on pipes or cooling ducts, etc.
Charon