Physically it is like any 25″ drive.

There are some drives that specify OS X compatibility but they run more than others. The drive I got listed OS X among other OSs but I do not believe this needs to be the case. (Someone please correct me if I am wrong.) Worst case scenario you will need to go to Disk Utilities and format/partition the drive before you start. That noted, just to be on the safe side I jumped on a drive that listed OS X compatibility in the specs.

Also- I believe the SSD drives Apple uses have lower Read/Write speeds than the one I put in. Another advantage of doing it yourself.

Do I need to buy a special HD or will any laptop HD work?

Any but remember to format and partition first.

Do you have any recommendations besides the SSD you got now? (I need more storage than 120gb)

I would have loved to jump to a 200+ GB drive but the prices are still prohibitive for me. They are, thankfully, coming down fast. I got the 120GB, stripped out the PowerPC code from applications using XSlimmer and figured I would use a couple of Sd cards if need be. When prices come down I’ll go larger but for now this was the best balance for me.

Oh, one last thing….sorry… I see MBP comes with 5400rpm standard, but 7200rpm are optional, would a faster spinning drive eat more battery life in a Mac?

As Michael noted, faster will draw more power. How much of a hit will battery life take? Sorry but I do not have an answer.

And, like anything, you can *always* do better price wise doing things yourself … I can’t remember the last time I bought a Mac with added memory – it is much, much cheaper to get it yourself and easy to add it in.

Oh, one last thing….sorry… I see MBP comes with 5400rpm standard, but 7200rpm are optional, would a faster spinning drive eat more battery life in a Mac?

Thanks so much, Rod