contrary to general opinion, dimmable CFLs do exist. The trouble is, I've only seen reference to them on the USA market. A few web-links shows their existence:
TCPI 'SpringLamps' at <http://www.tcpi.com/index.php
if you look at the (pdf) product catalog (sic) you'll see them at the bottom right of the page:
Also GreenLite USA <http://www.greenliteusa.com/
it costs $13.28 at the US Amazon.
The USA Dept. of Energy have a neat website that shows 29 dimmable CFLs.
Go here: <http://www.energystar.gov/index.cfm?fuseaction=cfls.advanced_cfl_search>, tick the 'Dimmable' box, then the 'Find CFLs' button to see the results.
And finally, a bit old, but there is also:
"Philips Lighting introduced the Earth Light® Dimmable CFL in 1997"
Now all of these are US products, which won't work on UK voltage, and I'm aware this is uk.d-i-y. Short of using a step down transformer on the lighting circuit and sourcing all the lamps/bulbs from the USA (what would Part 'P' have to say about that I wonder), has anyone come across dimmable CFLs for UK/European use?