I'm playing Baldur's Gate DAII when I get a chance. Playing it through multiplayer with one of my friends.
Doesn't seem to have much in the way of new features other than the Jewel/Rune item upgrading (stolen from Diablo II). Pretty much a new story with the same, now aging, engine. Still a decent hack and slash romp that is a bit deeper than the LOTR:ROTK game.