I had an ergonomics issue that Microsoft split keyboards resolve.
Years ago I had a Microsoft Natural Keyboard Elite keyboard that I really liked, but they are discontinued now and I'd rather get a new model if it is better or comparable.
Keyboard: Microsoft Comfort Curve 2000 on PC, Magic Keyboard (2. Generation) on Mac
I really like the MS Wheel Mouse Optical, unfortunately it is no longer produced. I tried different mice, but I think I like it that much, because it has lower DPI (400 DPI) than an average mouse (about 1000 DPI). Nowadays it is difficult to get a mouse with 400 DPI.
Got another Ergodox after hankering to try it again after selling my first after a couple months, waiting until I have a little less work to transition over to it as my WPM drops to about 10 while I'm learning.
Mouse: LOGITECH TrackMan Wheel Optical USB/PS2
I have at least 3 TrackMan Wheel's, one I always bring to use at the current place of work.
Mouse: Xmonad
I know I should probably check out mechanical keyboards, but I'm just too damn used to the MacBook keys.
And a mouse at its side that I am less picky about.
I also have a cheap Monoprice mech kb that is actually pretty nice.
mouse: Razer DeathAdder Left-hand edition
Logitech M560 at home and work