Web Design Links:
More NN4 compatible layouts can be found here at www.fu2k.org. More than just a few layouts, it explains how to make them, and gives you the basis for other types of layouts.
A very nicely designed website, www.twothirty.com. They are a design and development firm, just like Marzhill Studios Inc. whose website is coming soon.
Update: I found this site that catalogs css hacks. Very useful.