There is a couple minor css issues with the layout of the gallery. (eg the text should be on the right of each image).. I'll see to it tomorrow.
Sig - I think having the forum as well is a pretty good idea. It provides a nice place to chat about the designs and people can ask questions relating to a site. So yeah I think we should keep it. Overtime I think a couple features we could add is like some sort of tagging/categorys (if tons of sites start coming along), rating sites and maybe some sort of rss feed for the showcase.