I read over at PlanetBaldursGate that Charles Bisson, a Baldur's Gate II fan, has made an unofficial expansion for Throne of Bhaal called Shadows Over Soubar. The expansion is about 298 MB and features four new NPCs (with quests), a new thief kit, a new stronghold, over one hundred new areas, over four hundred new creatures, over four hundred new items, twenty new stores, over thirty new mini-quests, and two major quests. Interested? Click here to download it.