Tension doesnt mean to much to me, it actually confuses me a little, I just want a nice dark B, matching EADG, that I don't have to tune down so the strings will not "knock or vibrate etc." all over my frets.
A Line 6 lowdown LD15w/8inch.
If you learn the terminology, people will understand you better. Basically, higher gauged strings have higher tension - if you are tuning to the same note.
So, a .100 E has lower tension than a .105 E, for example.
High tension strings vibrate in smaller circles, so they aren't as likely to knock against the strings. However, tension has little to do with sound. A high tension set can be extremely dark sounding, or may be extremely bright. There's little correlation there.
Then again, most people seem to get by with normal sets. I'm sticking to my recommended string set above. It is generally most comfortable if all your strings have roughly the same tension. Your set doesn't, and in any case WILL break at the tuning you want, regardless of string manufacturer.
Other than that, you could try a nice set of flats (no experience here) since they are more likely to sound "dark".
Your amp won't be able to keep up with even a light-handed drummer. I'm fairly certain that if you try something MUCH bigger amp-wise - like a SVT or something - you'll see why you can get HEAVY even with normal strings. Probably you could bring your bass to a shop and try out a few big rigs?