Why is it hard for me to believe you? I don't know, but maybe it's only because I would also like to have such a system but it could also be that it's nearly impossible to have such a system ( unleast you saved AMD, Asus and Micron from being bankrupt many times by means that shall remain unsopken here!)
Anyway, to answer the main question: no I am not running a 1.2ghz athlon, but I wouldn't recommend it either unleast you have lots of cash. If you want to build yourself a gaming machine, then save a little on the CPU ( a 1ghz should be just fine!) and get yourself one of those GeForce Ultra with 64 meg of ram! If it's for something else, like video editing, then get yourself a 1ghz athlon, a scsi harddrive subsystem and LOTS of ram... 1.2 ghz would be overkill, unleast you want to say to your neighbours that you have the fastest CPU on the market in your PC.