About 4 years ago, we experimented with a couple of "dimmable CFL" bulbs in some ceiling can light controlled by a dimmer. Did not do anything resembling dimming - we were disappointed.
It might be worth trying some of them with a dimmer - technology with the dimmable CFLs might have improved in the last few years.
We opted to go with the CFLs and no dimmer - just a standard wall switch.
Bill