159 or so UK price from Amazon and with Amazon Prime, free shipping with Prime.
http://www.amazon.co.uk/GCW-ZERO-Open-Source-Gaming-Console/dp/B00HVJAFGWHate to seemingly sandbag a fellow enthusiasts sales thread on A.org, but do your homework on these things before buying one from anywhere. There's been a terrible number of people let down with the build quality of them. I'm one of them, and I backed the Kickstarter program on these (and honestly regret doing so).
A fun little piece of kit, but do your homework and read reviews on them before buying. I found the build quality on the one I got to be worse than a $90 Android tablet I bought awhile back, but YMMV.