Congratulations Apple! You have finally made it happen. A few days ago apple launched the third version of its pro photo software. So, as I’m using Aperture since Version 1.5 and was using version 2 there was no question whether to upgrade or not, esp. at a price of 99 Euro. A few days ago I ordered the package and today it arrived. I took the time, prior to the upgrade, to tidy up my MacBook Pro’s HD and get rid of some ballast 
The upgrade process itself was no problem in terms of upgrading the software itself. Finally the startup dialog told me that I had to upgrade my library in order to work properly with the newly version 3. Of cause I agreed, since I was pretty much interested of being able to use all the nice brush features that were advertised. But then I could hardly believe my eyes: A popup told the that I was not having enough HD capacity for the upgrade. To tell it in numbers: my library is about 60 GB whereas I still have 48 GB left on my drive… Do I get it right? The upgrade needs more than two thirds of the old library size as temporary space? Damned! I’m en route and forgot my external HD 
But I will keep you informed about my upgrade procedure when I’m back…
