I recently bought a Nikon N90s, 35mm SLR, and just got back my first two rolls of TriX from the lab. Looking at proof sheets through a loupe leaves a lot to be desired in the digital age. So, I've been scanner shopping over the last few weeks, and the only Nikon scanner carried by both B+H and Adorama, the NIkon Super Coolscan 9000-ED, has been back-ordered for weeks, if not months. I'm in the process of switching over all of my software licenses to OS X now, but I've also heard that the Nikon 9000's driver is still problematic with recent OS X versions (even, pre-Snow Leopard releases).
Since dealing with old SCSI slide scanners in the early '90s, I've never been a huge fan of desktop scanners. Either the scanning software, or the manufacturer-supplied driver and OS compatibility always seemed to be overly troublesome, and dust is always a tedious concern. So, I'm considering drum-scanning everything at a service bureau, which is very expensive. The good thing about drum scans, is that they have much greater dynamic range than even the best CCD-based desktop scanners, and they immerse your negatives in a scratch- and dust-removing optical fluid while scanning. But due to the high cost, I'm still considering a desktop slide scanner to scan, mostly, 35mm black and white negative film, and maybe some 120.
Any other desktop slide scanners (not considering any flatbeds) worth checking out, with available drivers known to be compatible with current OS X versions, other than the unavailable Nikon Coolscan 9000 ED?