snipped question - subject says it all

Hi,

How about using compact fluorescent spotlights?

I bought one recently - the light is very very nearly as good as a
halogen, it only uses 7W instead of 50 so excessive heat isn't a
problem so you could insulate fully and save even more money.

Only downsides are that they are a tenner a pop and aren't dimmable.
They will of course, pay for themselves many times over during their
life.
Hopefully they will bring out a dimmable version.

Alan.