That case is available under other brands, for example Raijintek sell it as the Metis in a variety of colours.
(it still looks huge to me, but whatever floats your boat)
You can get an H81 board and a Celeron G1840 for the same £65-70 and in the worst case it's the same speed as a 5370, in the best case it's well over twice as fast.
Unless having 40-50W maximum power consumption instead of 70-80W is important there's just no good reason to go for the 5370.
An A8-7600 would be a reasonable choice if your DDR3 isn't 1.35v.