I'm really looking for your impressions, but I'll start it off with my own. Having used a G4 mini since '05 with Tiger and 1gb plus a FW 250gb external...I have something to base my comparison on. Not having the same operating system may make my points moot, but here goes. I find that my G4 mini (w/ 4200 rpm 80gb drive) tends to have fewer beach balls where the computer, or at least the app goes unresponsive. Now, maybe the new mini is doing something for spotlight or something else I'm not aware of, but I've been less impressed than I expected to be. Other areas are MUCH better, playing an HD trailer at a full 24 fps with no processor stress for example. Loading PSE 6, and others are much better. Either way, I've ordered the 4 gb ram, so I expect things to improve in ways the older mini could not. I also have a question about right clicks. I use a Logitech MX revolution which had right click options like a PC, but for some reason under Leopard, I cannot enable them. What am I missing?