I guess we all need a new look in nopCommerce project as in all the versions the look/theme is same and few things decreases the quality of pages. I think we all should post our suggestions and feedback to make easy for nopCommerce team to understand our needs.
1) The http://www.zeuscart.com/ Mouse Hover Menus looks really good and something like that should be included in the themes. The grey color of menus goes with the darkOrange Theme.
2) The information Section from the left column should be move to the menus, because when we add manufacturers and categories, the information section keeps on going down the page and it makes it little useless as website visitors don't like to scroll down the pages.
3) The body-width of the page(s) should be increased, as due to the left column section, the space is quite small for the information in the body of the page. Sometimes we want to put flash and some text information on the homepage but small space creates more lines of text in the body and the decreases the width of the picture(s) and flash files that an admin wants to have on the homepage. (The body/page width in the http://www.zeuscart.com/ is perfect according to me)
4) There should be a feature in the admin section to select categories that are being displayed on the homepage because if someone has got 100 categories, it just makes the page soooo long. The feature in the admin section should allow admin to select few/more categories of admin's choice only that should be displayed on the homepage.
So, i guess the "Show on the main page:" in the Manage Category should be removed and instead of that this checkbox should be available within each category to select specific category to show on the main page:.
This feature will improve the quality of the page.
4) There should be more than 2 default themes in nopCommerce project for the admin to select.
Hope it helps...