I just bought one of these:
http://www.diy.com/departments/diall-le ... 144_BQ.prd
.... they're £5 cheaper in screwfix (of course) and I am quite sure the equivalent could be found on ebay for less still but the main thing is wow, what an amazing light. I needed some sort of work light as I am working on my van round the back of the flat at times and running power just isn't practical (most of the time) so bought this on a whim and its amazing. The best bit is that it can be charged off the van/leisure battery.
I am quite sure it wont get used a great deal but I just wanted to share because for once I'm happily surprised at how good something is opposed to the "thats a bit naff I'll take it back"
If you need a portable work light this is amazing