hmm its an awkward amount to get, its not enough to pay off my debt, nor to really bother saving with...
I'd probably put ~£300 aside for a WiiU, get a nice(ish) Katana for about £170 (mine is rubbish and not full tang so blade is wobbly) and a pair of Kama for about £30
The other £500 i'd pay off some debt with probably, either that or if the rules said no savings or debt i'd probably get an even nicer katana =p