Yup--(almost) I`m moving more and more over to spreadbetting. Improved service from the big names and ease of use .
Nice profits this year and saved a small fortune in tax. Not neccessarily efficient for everything but works for me.
Though, personally I would recommend you do your own analysis on the results you'd achieve using an SB broker compared to using a futures broker as the tax saving only exists in certain circumstances (the broker you use / type of trading method / instruments you 'trade /bet') IMO.
Taking into account the type of broker i.e. ECN compared to market maker is very important too as this affects the speed and reliability of execution.