*nod* My inventory uses the sort of container that you're describing, Fall, and I know I couldn't play without it now that I've grown accustomed to it. =)
I also wanted to note that my UI is back up and running now, I've fixed everything to be in line with the 2-24-03 patch and updated my website and .zip accordingly.
http://www.geocities.com/fluteconcerto/myUI.html