I have several business directories with each business listed in cells within a table and I'd like to make these tables/cells more attractive. While one could work with <div> instead of tables (or even CSS), I don't know how to code a nice-looking cell... say, smooth-looking with rounded edges. Formating table borders to have a 'groove' or 'ridge' just doesn't give me what I'm looking for. I can't seem to find any templates either... if that's what I should be looking for. Is there a term for such a thing to aid in my search?

you could do nice div layouts this is an
all div / css comment form with nice rounded edges.
You could view the source and check out the CSS includes and Div code.

hope this helps and is not too messy