Yes you can make a poll, but it has to be on the first post and you can't edit your post later on to include it. In other words it's too late for this thread unless you want to remake.
I'm using the Steelseries 7G:

It's pricey (~$130 US) but it's the best keyboard I've ever used. It doesn't have all the lights, extra buttons, and special features that some gaming keyboards offer, but it's high quality and feels great. It's a bit loud though.
It has antighosting meaning you can press a ton of keys at once and it will all register. It uses mechanical switches, has gold plated connectors for faster response time, and shorter keypress length meaning even a light tap will register.
I haven't tried the 6Gv2 yet but it looks very close to the 7G. It's around $30 less, and from what I've read it has pretty much all the same features. They removed a few things like the handrest and stuff but I never even use that anyway, the thing is huge.
My keyboard (and member DraKKiE's keyboard) before this was a Dell SK-8110:

It was around $10 US and is also another keyboard I could recommend. It's quiet, lasts long and the letterings on the keys don't wear out.
I've also tried a so-called gaming keyboard called Z-Board and all I can say is
stay away.

This keyboard is foldable and I think there's many different skins for it. It's horrible for Tetris, the keys sometimes don't register and you have to press them pretty hard. It's a very stiff keyboard and not worth the money.
I'm pretty interested in the Razer brand keyboards though, they look nice but I haven't had the chance to try them out yet.