I've had a HP Scanjet 2300c for a few years, and it's a nice enough scanner. (It's not super-fast, but I don't do a lot of scanning.) Today I wanted to connect it to my PowerBook G4 and scan in some documents to send by email. I tried. I failed. It seems the 2300c is not supported natively by OS X. What I very definitely don't want to do is download and install some multi-megabyte, proprietary "scanning and imaging suite" of applications from HP. Assuming one exists. All I want is a driver, or whatever it takes to let me use something simple like OS X's Image Capture application. That's it.
Following a link from Apple's website, I downloaded VueScan from Hamrick Software. It didn't see the Scanjet, but the best bit was being able to test it out using the Mac approach to software installation: download and mount a disk image, drag and drop to install, drag to Trash when it doesn't work. Done. There's no crap scattered about various system directories on my disk and there's no "Registry" to corrupt. I tried VueScan, it didn't work, and now it's gone. (In comparison, I probably have the assorted detritus of dozens of applications scattered about my PC's disk. Applications which mysteriously "couldn't completely uninstall" are the norm in the Windows universe.)
So, it's back to the PC to use HP's monolithic suite of bloatware to do a couple of pages of scanning. That's disappointing, but kind of countered by the fact I got to test out VueScan without pain because Mac OS X does things the Right Way.