There is a source code project that is under a freedom general license that is really nice.
It has an old world feel with a inventory system comparable to diablo style.
I'm trying to pick through the inventory system and gain knowledge about coding a nice inventory system like this one.
It is pretty advanced code though and it's taking me awhile but just wanted to give you heads up about it, if anyone is interested in utilizing their code.
When I look at it. I see a nice UI and inventory system ported to a 3D rpg.
http://dawn-rpg.sourceforge.net/wiki/index.php/Main_Page
Like 30 different TGC products. Cause I get bored easy.
Asus P5Q MB, P3.0 dual core, 4gigs ram, SATA HD, GTX 260
Win 7.