Weaaddar just released a new version of his rpg engine, it is recomended for mappers that are making rpgs, or need more inventory slots and keep the bonuses of the items. It is also a good map to those that just want to see wc3 driven to its limit. It is also multiplayer and multi unit compatible.
I updated to revision 3 today, so you should probably pick up the new version. The new version adds auto-equip. You can help the project by giving me a sound to use for when you equip items. Remember it'll probably be played a bunch so it has to be easy on the ears.
I'm probably not doing something to Pitems or EItem functionality so you can add those without worry. If anything I MIGHT re-add the stat attributer but it is by far the least popular of the features.