This may have been covered extensively before - I picked up the academic version of aperture for relatively cheap. I was using iview media pro, but they got bought by microsoft and also seemed to be randomly quitting on me.
Basically, I shoot 35mm B&W negs, and scan them in via a film scanner. the catch is that my particular film scanner/software combo sucks for B&W negs (very flat contrast, etc) so I need to do a lot of heavy adjusting in photoshop - the method I've found works the best is using photoshop curves via an adjustment layer so the "raw scan" remains intact underneath.
Anyway, the sorting/organizing features of aperture rock (i have the "keep files in original folders option checked)...the problem is that the levels/histogram controls that it has doesn't really work well, at least with me...whatever I do usually ends up degrading the image and "greying" out shadow detail. the photoshop clone stamp tool I've found is more efficient than aperture's remove dust/blemish tool.
The best solution would be to use aperture to launch photoshop to edit the file - the problem is that aperture feeds photoshop a flattened version of the master file, so if there were adjustment layers in the file, it becomes lost in the new file, and the new file is saved in Aperture's database - ...i.e. not ideal and takes up more space due to the duplicate files...
In short, I'm trying to figure out a decent workflow that involves both aperture (for organizing) and photoshop (for editing), and was wondering if anyone has worked out a decent solution between the 2. HAs anyone gotten the hang of aperture histogram/levels either?