In reply to Nutkey:
"not counting the cost of replacing all the halogens which blew at a fantastic rate"
Long wondered why people have such an issue with these - I had the fittings in for a good year and a half before I swapped for LEDs, and not a single one blew.
I wonder if it's because mine are all the open-to-the-air 3-bulb centre fitting type ones rather than recessed ones, so they don't tend to overheat?
Neil