BG II does have QUITE a lot of battle, however not in the style of DD or Diablo. It also has ALOT of storytelling.
If you hate storytelling and just want to kill/kill/kill Icewind Dale uses the same engine as Baldurs Gate II, but is much more combat oriented. There is a bit of storytelling, but not as much as Baldurs gate. Since you basically like only hack and slash.. I don't think either of these would appeal to you.
I'd only recommend Icewind Dale II if you LIKED the first Icewind Dale, and like the engine/battle style.
Other than that, Gauntlet: Dark Legacy (For PS2/XBox) would be the only hack and slash game I can reccomend. (Crappy graphics, stupid story, tons of hack and slash, but GREAT hours of endless/mindless hack and slash!) <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />
Also Harbinger (PC) is kinda a "diablo in Space" however, it currently is buggy, and VERY SHORT but you can replay the game with 3 different characters. The graphics are beautiful however. I'd wait another 6 months till they finnally patch it though before you buy it. <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />
Also I think there is Hunter: The Reckoning (Xbox) havent played it but it is basically hack and slash I believe?