Peripherals with Great Mac Compatibility What peripherals do you use on your Mac that really work well? It seems like most things (especially mice and keyboards) don't work all that well, even if they claim compatibility. I'm looking for things that work as well on a Mac as they do on a PC.

So, community, what Mac peripherals do you use that 'just work', and work all the way?
Please post answers as wiki, as I'm not looking for a particular piece of hardware.
Razer Mice
Many of their mice are fully Mac-compatible (I use the Naga). Macro running and recording works perfectly, and they can be very complex (if you want). These are the only mice I've seen that work like this on a Mac.