Hey I have a PB 12" rev A, my first mac. After more than two years, it's getting a bit old and I am looking into my options in replacing it. My issues with this machine are: an almost dead battery A too small a screen Does not always wants to boot overheating of the HD (left hand palmrest) extra (cheap) ram is not always recognized on boot</li> A bit too noisy I have put up with it the last half year, seeing it get worse and worse or alternatively running out of patience. Ideally I would buy a PM 2Ghz with an DVI screen. But at the moment, being a newly graduate scientist waiting for that first research position to come through, I don't have the money for that. I could have that kind of money in a few months time, say january. To spread out the cost I was thinking of buying a screen now, but my PB doesn't have a DIV-out. But the mini has. If a sell my PB and spend a bit more of money I guess I could buy a mini together with a screen. And replacing the mini with a PM in a few months time. But is it worth the extra money to replace my PB with a mini, based on specs? The sentiment is that I want to replace the machine (while I can still sell it) before it completely breaks down and that I want something new. On the issue of portability, in my case I have to drag my mac from my dormitory to ..., spending days to a few weeks at the alternative location. But wherever I go PC's are already available, but I prefer my mac. So for the 10 minutes or so it takes to setup a mini, I might as well drag that with me.