I'm still using IBM Model M's on all my home and work desktop PCs. I have a good supply stashed (from ebay years ago), though I've hardly had to dip into it.

I'm still using IBM Model M's on all my home and work desktop PCs. I have a good supply stashed (from ebay years ago), though I've hardly had to dip into it. Most PS/2 -> USB converters would not work with the Model M, so once I found one that did, I laid in a supply of those as well. Will pass the stash on to my kids if they're interested... Edit: for extra credit: I'm still using the Logitech Optical "Marble mouse" (trackball, really) which I switched to (again, on all home and work desktops) perhaps 10 years ago when use of a standard mouse led to acute arm and shoulder tightness and ache/pain. I remain pain-free in this regard since the switch. Maybe any other trackball would work just as well, but this one did the trick for me. BTW I use an HP DV8113CL laptop with Synaptics Touchpad extensively and I'm happy with it (though the keyboard is merely adequate). I've had occasion to use IBM trackpoint's (including those built into IBM Model M's as well as Thinkpads), and did not like them one bit.