Well, it all really depends. If you are close micing, you can use pretty much anythign except a ribbon mic. A condenser isn't going to pick up monitor signal if it's only 2 inches away from the speaker.
If you want to go dynamic, there are some good options for you:
Audix D4. Don't use the D6, it's meant for kick drums, so it has no top end. You end up sounding really muddy.
Shure SM57
Sennheiser MD421
Condensers that sound really good with bass are few and far between, but here are a few that I like:
AKG 414 (if you wanna spend $900)
Shure KSM87
Sennheiser MD 409
I'm sure there are others, but I have only used these ones myself, and thenin a recording studio, not live. Still, if they sound good in the studio, they're probably good live.
Rock on
Eric