Ok, so I have a chance to buy a 1.3Ghz upgrade card for my Cube for only $200. It's based on the G4 7457 processor with 2MB of L3 cache and 512KB of L2 cache, which I hear run faster than the equivalent (in clockspeed) 7447 processors. So. My question is, is this a good deal? Should I go for it? I won't be able to afford anything like a Mini anytime soon, and I don't plan on ever ditching the Cube, but maybe there will be new G4 variations out soon that will push these prices lower? Or will they stay about the same?