A++ LED downlighting - which ones?

[AlexHerts]

I want to fit out a few rooms in my house with some led downlighters and wanted some advice on whats good and what isn't.

I've seen these which seem a good price, anyone else used them?
http://www.screwfix.com/p/lap-fixed-fire-rated-led...

Id rather spend a little more now on some energy efficient ones than buy cheap fittings and spend £££ running them, so any advice would be appreciated! Thanks