For what it's worth, I agree on the Thiel's -- they need some muscle behind them to rock well. For the 2.3's, I'd suggest 200w per channel minimum for rock and for the 6's, 400+ is better (a watt is not always a watt, but you need the current flow that is typically associated with these kinds of amps IMO). The Thiel's also need the right cabling -- i.e., MIT speaker cable -- to really sound right. They can definately rock, but it takes the right combo to help do it.
The B&W's are a little too laid back to rock well (for me). If you switched out the cross-overs, that could help but I didn't think that was in the budget.
As others suggest, you may want to look at the alternatives mentioned above.
As a unconventional alternative: If you really want the bass impact at a lower price, you could also consider combining a reasonably priced full range speaker with a subwoofer. The balance needs to be right and that can be tricky -- it's hard to get it so the bass is not overpowering and is seamlessly integrated. That allows you to get a full range speaker which may bottom out at 40-50 Hz and still get the bass slam from the subwoofer addition. Full range speakers that get way down the bass curve normally cost a lot more or sacrifice something else along the way. Good luck.
The B&W's are a little too laid back to rock well (for me). If you switched out the cross-overs, that could help but I didn't think that was in the budget.
As others suggest, you may want to look at the alternatives mentioned above.
As a unconventional alternative: If you really want the bass impact at a lower price, you could also consider combining a reasonably priced full range speaker with a subwoofer. The balance needs to be right and that can be tricky -- it's hard to get it so the bass is not overpowering and is seamlessly integrated. That allows you to get a full range speaker which may bottom out at 40-50 Hz and still get the bass slam from the subwoofer addition. Full range speakers that get way down the bass curve normally cost a lot more or sacrifice something else along the way. Good luck.