I have been useing a Logitech G19 for yonks, and have no plans on buying a new/another one.
I am quite pleased with it.

All my input hardware is Logitech.
(Well, apart from my Wacom)

But then again....

I wouldn't be surprised if I go all nuts and buy a keyboard from Datamancer...
They are droolable!

If it isn't made by Logitech, I wouldn't buy it. 

I had a Microsoft sidewinder x6 at first but the o key got really buggy after just 2 months.now I have a razer blackwidow and couldn,t be happier.

Filco (Japanese brand, built like a tank) mechanical keyboard with Cherry Brown switches.

Never seen a better quality one than the Edge...

Logitech MK320s in our house. They work great. (I'm not real picky about keyboards though).

I'd dropkick a kitten for this set:

Wow, $725 for the keyboard alone.  That'd buy a lot of kittens.

Logitech illuminated and the k370 (solar)... love them.

I have a Logitech MK550 keyboard/mouse combo.  I'd post a pic but Imageshack has feched up my account and I can no longer sign in, and Photobuket is a major PITA,

Anyway, while it's not gamer specific, it is a great keyboard and has all the extras a person could want.  Not only that, it's real comfy and easy to use, as is the mouse.

Oh, and mine didn't cost AUD$129.95.... was $79.95 at Officeworks, so I reckon the US price would be around $45 - $50 if you shopped around.

There are no good keyboards...

I need the layout of a MS Natural Pro with keys that aren't shit.  Painted lettering and plastic contact sheets is what I can get...

I use a razer blackwidow ultimate for gaming. I like it it has pretty good feedback...but I can't stand it when programming. I have a cheap logitech keyboard that I use when working on programming projects instead.