It comes up from time to time that somebody wants to build a power supply that can get down to 0V. I don't know why that is a requirement, but it is!
So, I was wandering around the Linear Technology site when I ran across a 1.1A LDO regulator that can get down to 0V and go up to +36V. It can also be paralleled to provide more current. Seems like a pretty cool regulator. LT 3080-1 is the device:
http://www.linear.com/product/LT3080-1Less than $3 direct from Linear Technology.