I am in the process of ordering the remainder of my new PC and have been waiting for Intel's Q3 price cuts to arrive, and looking at Scan, it seems they have. The Q9450 has only dropped marginally, but the 9550 is now only £223.12 and I'm a bit torn as to which to go for. I assume that the extra .17GHz will make little impact on real word performance (And the price: clock speed ratio remains in the Q9450's favour) but will the Q9550 overclock better than the 9450, making it worth the extra £23? I will be putting it in an Asus P5Q-E with 4GB of OCZ Reaper 1066MHz RAM.