I've been thinking about purchasing a new keyboard for some time now.  I want to stay away from Logitech as I am fed up with their software.  Sadly I think they are it when it comes to lcd screens, but I can live fine without that.  I went to the razer site to check their stuff out and noticed a new keyboard that should be up for purchase in December.  The Razer Anansi.  They are marketing it as an MMO keyboard but I don't think that matters.  It has the extra programmable keys on the left side like Logitech's G keys.  It also has a section of thumb keys below the spacebar which I think would be even more handy.  At 99.99 it is more expensive than the Logitech G15, but usually cheaper than the G510 and definitely cheaper than the G19.  I currently use a Razer Lycosa and the only problem I have had with it in the year plus of ownership is the C rubbing off on that key.

http://store.razerzone.com/store/razerusa/en_US/pd/productID.220723800/categoryId.35156900

Yeah, it looks cool.
I pre-ordered the Razer BlackWidow Ultimate not too long ago, but that will be my first Razer keyboard.
I've been using generic $10 keyboards for years and they work out just fine, though.

The one thing I hope to never part with are my Logitech mice.  G500 on my gaming rig and G5 on this one.  I love that size/style and don't use their software with them at all.

There is a lot of neat hardware these days.
I was using a wireless mouse for years, but grew tired of the occasional slow response in FPS gaming.  I use an Orochi now.  It has Bluetooth and a mini-USB:USB wire, which I keep connected for gameplay.  I just like the option of using the BT for the PS3 and netbook.  New tech is always fun.