I have no clue where to put this, so I'm putting it here. I've been playing guitar for along time now and, really want to learn to play keyboard so any advice about what brands to consider and books would be appreciated.
Korg's are fairly good. Theres some people who don't want to buy a Casio keyboard because they make calculators :P Just go to a guitar and/or music store and just try out some brands. Also, ask the employees at the store what some good brands are.
This post may contain my opinion and/or inaccurate information.

Current Rig:
2006 PRS CE-24
Mesa/Boogie Mark V
Voltage S212 w/ V30's
Strymon Timeline
CMATMods Signa Drive
TC Electronics Corona & Hall of Fame