the centaur is badass as D&L rightly said, but if you don't want to pay £170 for a BB preamp you probably don't want to pay £300 for the klon... :lol:
I must look into that lizard legs one, never heard of them before. :)
Depending on how much tightening you want, an od might be better than a plain booster? would definitely be worth trying both, anyway, just to be certain.