Alternatively you could probably get away with traditional R39 SES spotlights rated at 30W. (It's only just over the theoretical maxima for your lamps and there's always a bit of leeway with such things). Asda sell them quite cheaply, in packs of 4.
I have bought some from Tesco. I know that I have a stash of the eco bulbs somewhere in the house - somewhere. I have avoided using them as they are not very bright. I can't remember bulbs being very expensive at all last time that I bought them.
Thanks folks - I am just off to do some surfing and then to bed. I am in great need of a good sleep.
Some low quality LED bulbs were proven to fail before their anticipated lifespan but not all. Many of those were withdrawn and in general they last well, draw less energy and are instant, unlike the original low energy bulbs that take an age to warm up.