Price for the Dunlops was at my local tyre depot Welland Tyres, always competitive on price but probably won't suit if you're no where near Lincs.
DO NOT BUY THE FALKENS, that was the last tyre I had and they were crap to say the least and I only got something like a 25 quid per tyre saving over the Dunlop TTs which wasn't worth it. One positive was they lasted forever to the point where I just wanted rid. Ultrac Centros look the best bet for around the £100 mark if you can get them... probably gone up though like all tyres lately. Nankangs will be over a hundred soon at which point elastic bands might be better.