Alas, no more brewing until after Christmas now as I'm spending it with family. I'm considering the Coopers Stout for when I get back, or if I'm feeling the post Christmas financial pinch I've heard good things about the Wilko Velvet stout. I'll brew it a little short (the Wilko Newki Brown kit I did to the instructions is a bit watery) and use beer enhancer. It should come to about £15, or £18 with the Coopers Stout. Then again I could possibly get about 5.5+% ABV if I did the same process with the Coopers, if it ferments properly, making the £3 extra expense worth it. That sounds like a good winter warmer to me.
I could get the Wherry for £18 but I wouldn't have the fun of experimenting then. It all depends on whether I fancy a stout when I get back.