This seems like the cheapest way of getting the 16 awg version:
http://www.amazon.co.uk/Belkin-PureA...514764&sr=1-15
This doesn't have the grey plastic braid over it or the bananas, but it'll do the job a treat, I reckon.
The fat stuff is way more expensive now - looks like what I bought from Ebuyer just a few months ago for under four quid is over £100 in some places!
..........but if you hunt around...........
http://www.amazon.co.uk/Belkin-14Awg...=pd_rhf_shvl_4
search for Belkin 14 awg & you'll find a
very wide range of prices