LINKS & RESOURCES: I found a number of promising OSX tweaks on A Guide to "Things MacOS X" on the Net:
- Path Finder: AKA "Finder Pro." It's the perfect tool for those of us that use multiple OSs and miss having the path available at the top of a browser window like in Windows and Linux.
- DropDrawers: An application that gives you little "drawers" (panes that slide on and off the side of the desktop) that hold shortcuts, URLS, documents, etc.
- DragThing: An flexible alternative to the doc.
- TinkerTool: A tool for adjusting hidden GUI options.
- Quitling: A menu that provides you with functions from OS9 and other fun stuff, like killing rouge processes.
While we're on the subject, be sure to check out Paul Graham's, Return of the Mac.
All the best hackers I know are gradually switching to Macs. My friend Robert said his whole research group at MIT recently bought themselves Powerbooks. These guys are not the graphic designers and grandmas who were buying Macs at Apple's low point in the mid 1990s. They're about as hardcore OS hackers as you can get.
The intervening years have created a situation that is, as far as I know, without precedent: Apple is popular at the low end and the high end, but not in the middle. My seventy year old mother has a Mac laptop. My friends with PhDs in computer science have Mac laptops.  And yet Apple's overall market share is still small.
Though unprecedented, I predict this situation is also temporary.
So Dad, there's this company called Apple. They make a new kind of computer that's as well designed as a Bang & Olufsen stereo system, and underneath is the best Unix machine you can buy. Yes, the price to earnings ratio is kind of high, but I think a lot of people are going to want these.