I'm falling more and more in love with the concept that Aperture and Lightroom builds on. Everything is structured in such a way that the whole process, from importing to printing/publishing, and everything in-between, just flows (forgive the buzzword, but it's really appropriate here) so nicely.
Another thing that I've come to appreciate, is the way in which building out my image library, and spending some time keywording images, is building a nice profile of my usage. I can see, for example, that about two thirds of my images are shot below 35mm (50mm equiv on FF), so if I'm going to invest serious money in another lens, equipped with this knowledge it's easy to decide that it will more likely be the 16-35L or 17-40L than say, the 70-200L. (all other considerations ignored, for the sake of the argument).
I've started pulling my jpegs from the P&S into Aperture as well.