**24/11/2016 11:30am EDIT - This post originally contained preview deals posted 2 weeks ago. Since then and especially leading up to Black Friday the deals appear to have significantly changed. To save confusion I've removed all the old fluff and replaced it with what we as a community know as of 11:30am 24th November.
From Dell's Black Friday Page
Nov. 24th at Midnight: Inspiron 15 3000 £199 (save £180!)
Nov. 24th at Midnight: Dell 28 Ultra HD Monitor S2817Q £263.40 (save 50%)
Nov. 25th at 1 p.m.: Inspiron 15 3000 £129 (save £140!)
From today's Metro, thanks to user Codify. Note that this is NOT found on Dell's site (yet):
10% Quidco plus 12% discount showing on Quidco site