html category / sub-category best view

Question

I have a mysql database populated with categories/subcategories, and I'm on the way to build a php/html/css presentation module to show the hierarchy above mentioned.

My objective is to have a simple and clean way to list those categories, widthout getting to confuse to the client (note that there's no "level" limit to the subcategories, so there may be 1 or 100).

I'd like you guys to advise me some visual examples on how to display my categories.

Thank you in advance!

Answer 1

You could emulate Mac OS's Finder:

_{(source: novamedia.de)}

Answer 2

How about a windows-like tree view? People are used to that.