Don't go with Razer IMO, go with microsoft or logitech, they put more build quality into their stuff. Personally however I use an old $2 DELL keyboard that I have a bucket full of replacements for, there is no need for expensive keyboards, way over the top. DAS is also very good imo.
No idea, to do the same thing I got a paint brush some thin matt black foundation paint and and crappy DELL keyboard, that seems to work just as well :P