I would HIGHLY recommend the new Saitek Gamer Keyboard myself. No more F-Lock key to mess with either!!
I've heard a lot of good things about that keyboard. I messed aroud with a display model at the local CompUSA and it had a nice feel and layout to it.
on the other hand the Ideazon Zboard sucks IMO. Got it free with Halo PC in a promotional and used it all of 15 minutes. Just cant justify swapping out the key insert everytime I want to play a few rounds.