I am currently (not far) into drilling hole to attach a wall to the concrete floor in my basement. There has got to be a faster/better way. I would like to hear from people who are experienced in this area. I have several walls to do and drilling appears to getting me know where. Suggestions, please.

Recently, I read about someone asking about basement soundproofing in the forums, and I am also at that stage very soon in my basement build. I wanted to know someones thoughts on the following. I was watching a do it yourself TV program a little while ago, and I seem to remember that they installed some sort of isolation strips to the floor joints to break that firm seal from the drywall to the floor. Now this all makes good sense to me, because if you cut down on the revirberation between the members, you should stop the sound travel. Does this sound right ?? The strips that they used however, did not seem very strong, almost like a formed this steel channel. I dont want to use this, but I thought, hey what about using a 1/4"thick strip of adhesive foam (more dense than weatherstripping) attached to the bottom of the joist. I would like to hear your thoughts please. Secondly, I am not worried about the heat transfer upstairs, so I have decided that I would like to have some insulation between the joists. Can I use just R 12 in there ? Will it be effective, or do I have to fill the whole cavity ?? Your thoughts would be helpful. By the way, I think this forum is fantastic, and admire all the people that contribute to it, I know it must be very time consuming. Scott