Can get intermediate LED spotlights which fit nicely (I searched every so often for 2 years - they must have come out recently). Can also buy intermediate/candelabra convertors (amazon, ebay) but I never found a small enough CFL that was bright (the size is the toughest issue is my recollection).
Details: http://www.scrollsawer.com/forum/tools-and-blades/51245.htm