Virtual key-codes
Anybody who's ever needed to work with virtual key-codes—especially to program a hotkey—has had the problem of looking up the key-code for a specific key. The usual solution is to fire up Peter Maurer's Key Codes.app and press the key, but wouldn't it be nice to look it up in a handy table that you could print out?
There actually is such a table, but it's well-hidden in the Apple documentation. Mac OS X uses the same virtual key-codes that it used for the legendary Apple Extended Keyboard. Thus, the table in Inside Macintosh: Text still applies.
The problem is the asstastic low-resolution JPEG scan of the table that Apple provides in the online version of IM:Tx:

Good luck with that!
So I did some poking. It turns out that there is a PDF version of IM:Tx on the ADC website—complete with a vector, rather than raster, table. Unfortunately, opening a PDF and jumping to figure C-2 is no easier than firing up Key Codes and pressing the key.
So here's a handy-dandy PNG version of the key-codes table, cropped straight from the PDF. It's 600 dpi, so you should be able to print it out on any printer without a problem (and if not, you're welcome to do the same crop procedure yourself). Here's what it looks like:
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In case you're wondering, I cropped it by copying the figure in Preview, then pasting into Lineform, which allows me to export to PNG at 600dpi rather than 72.