If you don't need the trackpad part of that keyboard, I have the 710.
It's not as good as the Microsoft Ergo 3000 wired keyboard I used to have, but it's good enough.
Also, if you play fast-paced PC games that rely on rapid keyboard response, wireless can be a bit of detriment. I've had occasions playing Diablo 3 (which isn't all that twitchy) where repeated key presses got missed that never happened with a wired keyboard.