There are some rogue "front-ends" out there that have some pretty nice isometric graphics. There was one I was following for a while that was using DC monsters.
(That was a couple years ago.) There is another similar game that is called Net-hack. That has some nice isometric front-ends as well.
They get pretty boring, pretty quick. Actually, I felt the same way about Diablo.
(I hope Blizzard doesn't send a hitman after me now.)