The enhancements that I developed are compatible with Baldur's Gate II ("BG2") and BG1Tutu (a free utility that allows playing BG using the BG2 version of the engine and rules). Many other enhancements by other authors can be found at the Pocket Plane Group site.
Download my BG2/BG1Tutu enhancements collection
Description of my BG2/BG1Tutu enhancements:
BBBKPG-BG2: Book Bags - creates nine containers for books
BBPBAG: Potion Bags - creates nine containers for potions
BBQUIV-BG2: Arrow Quivers - creates nine quivers for arrows
BBQUIVB-BG2: Bolt Quivers - creates nine quivers for crossbow bolts
BBQUIVC-BG2: Ammunition Belts - creates nine shoulder belts for sling bullets and darts
BBSCCS: Scroll Cases - creates nine scroll cases for scrolls
BBSCARDR-BG2: Scimitar of the Arch-Druid - A uniquely powerful +3 Scimitar usable by druids
Special thanks to Westley Weimer, Armin Schaefer, Jon Olav Hauglid, the developers of Baldur's Gate and the Infinity Engine, and of course Gary Gygax.