Here's a small program I wrote to edit your character and Items.
It works on Diablo II version 1.09 with or without the expansion pack.
If it crashes when starting, make sure you unzipped it to C:\UdieToo\.
Click Here To Download size: 81k
Download Version 1.10 Final-10 size: 101k (Updated 2003/12/27)
Download Version 1.10 Final-11 size: 110k (Updated 2004/07/06)