I would like to suggest for the product categories...
When you click one of 5 product categories, "TV" and then the web page's title should indicate "TV". This web page should include all types of TV such as LED, Plasma, LCD and etc.
If you click a sub product categories such as LED TV and the web page's title should indicate LED TV.
If you want to go back to the top of categories, "All Categories" so the web page's title will show for each category with 5 products listing down..
Check this out, http://www.fatwallet.com as an example and it would be great to have one for our FrameMarket.