I use an oem Dell keyboard atm. I recently purchased both the MS Sidewinder & Razer Lycosa keyboard. I returned both. The Sidewinder flat out sucked & I couldn't get used to the flush, laptop style keys of the Lycosa.
Only using a Microsoft digital media pro keyboard, works just fine. Though will be upgrading to like a G15 soon or something nice with a good back-lit keys.
Got sick of crappy MS keyboards which in fairness were very comfy but didn't allow sufficient simultaneous keystrokes. No problems along these lines with the Eclipse.
I like to change things up a bit from time to time, so I switch between these:
Das Keyboard Ultimate
Logitech UltraX (best keyboard for under $20 *ever*)
Saitek Eclipse
Logitech Illuminated Keyboard (sexier than the UltraX but I prefer the key action of the cheapie)
Got an Enermax Aurora aluminum keyboard on the way so I guess it'll get put in the rotation also.
orriginal logitech g15 that i have modifyed, i have a logitech wireless lazer mouse, i have worked the wireless receiver into the keyboard, it used to have a haedphone jack extension on it as well, but i just dont use haedphones any more. next step is to do the plexy segmentation mod and change out the g keys color for red... just cause
G15 V2, best keyboard I've ever owned, most expensive, but best.
I love peripherals like keyboards and mice like women love purses and shoes, I can't get enough of them for some crazy reason, so I go though a bunch until I find one I like a lot, ended up with the G15V2 and a special edition Razer DeathAdder, which I want to upgrade to a Mamba sometime, I've love a wireless keyboard like the G15 to match the wireless~ness of the Mamba, but no such thing exists, oh well.
Just a basic, no frills Dell keyboard, actually the same ones on the computers at work. I like the minimalist, space-saving style and the feel of the keys.
Original G15. The only feature I have to have is backlighting, I don't really use the other features much anymore. The way my KB tray is setup I can't even see the LCD display anyways.