Gary, I've always been this way, too. My friends think I'm weird. In fact, my friends rarely like the same music I do! Very annoying at times.
Geez, not asking for much, are you? I don't actually remember Kevin's suggestions. My taste runs more along the suggestions that Tim made. Here are a couple that these young'uns might not think of (mostly because my music collection is way out of date)... Tool's Anima and Gravity Kills (self titled).
If you're looking for brooding, but not necessarily dark, there's always Alice in Chains' Unplugged album. Beth Orton's Trailer Park is good for brooding, too, not really dark or rock, for that matter.
Tim took all my really good angry rock recommendations, though none of them are really brooding. My favorite angry rock-rap song is "He Said She Said" by Limp Bizkit. Just one of those days... Never fails to put a smile on my face.