Re: 3.0GHZ vs. 3.2 GHZ

Hard to say. At the moment I don't think there's much difference. Most programs don't make full use of the hardware no matter what system you have. So today, I'd say the cheaper one is the better choice.

But Snow Leopard is coming out next year and this is one of the major problems its going to tackle. Then, as Adobe updates their programs to work well with that you may see software pushing the limits of hardware again.

But I really can't say how that's going to work out since it's all in the future. I guess I would say that if you can comfortably afford the 3.2 chip, go for it. It may pay off in the future. If, however, you're sacrificing somewhere else (less RAM or a smaller screen, maybe?) to afford the chip then don't make that sacrifice. You won't see a big enough difference today to make that trade-off worth it.