Ubercart - Themeing product pages
I found a nice tutorial about how to theme your product pages in Ubercart. In Ubercart it's easy to get basic product pages, but to make them look unique requires a bit more finesse.
Here's the post from the forum:
http://www.ubercart.org/forum/development/3868/nifty_products_tutorial_part_1
And while we're talking about themes, this seems to be a nice module for doing themes with CCK (which Ubercart uses):