Well there's more so alot of mid-paced doom than really fast. Candlemass has some more mid-paced songs, The Reverend Bizarre...Hold on, this is total deja voodoo:
http://www.i-mockery.com/forum/showthread.php?t=22354
There's some good bands mentioned in there, Cathedral have good music, but Lee does the death vocal thing which I'm not a huge fan of. I would suggest Old Season as well, epic doomy Irish metal! Paul Chain has some somewhat up tempo songs. Cirith Ungol isn't always slow. Solitude Aeturnus is killer as well as Trouble! The Gates of Slumber are as well a faster doom.