Essex is more Southern England, being closer to London, and the Nottingham does not really have very much english character. I'd go for more for strains like the following:
WLP023: Burton Ale. From Burton upon Trent [ame=http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=burton+upon+trent,+uk&sll=53.981935,-0.439453&sspn=6.515199,19.775391&ie=UTF8&ll=52.409121,-0.186768&spn=3.217187,9.887695&z=7]burton upon trent, uk - Google Maps[/ame]
WLP026: Premium Bitter. From Staffordshire [ame=http://maps.google.com/maps?f=q&source=s_q&hl=en&q=Staffordshire,+United+Kingdom&sll=52.476089,-0.384521&sspn=3.37295,9.887695&ie=UTF8&cd=1&geocode=FdfXJQMdUm_g_w&split=0&ll=52.281602,-1.593018&spn=3.38783,14.0625&z=7&iwloc=A]Staffordshire, United Kingdom - Google Maps[/ame]
WLP038: Manchester (was already said) [ame=http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=manchester,+uk&sll=52.789476,0.428467&sspn=3.189389,9.887695&ie=UTF8&ll=53.455349,-1.241455&spn=3.140385,9.887695&z=7&iwloc=A]manchester, uk - Google Maps[/ame]
WLP037: Yorkshire Square Ale [ame=http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=yorkshire,+uk&sll=53.455349,-1.241455&sspn=3.140385,9.887695&ie=UTF8&ll=52.842595,-0.911865&spn=3.344803,9.887695&z=7]yorkshire, uk - Google Maps[/ame]
I have not used all of these, but I HAVE used the 023, and I love it. I use it for pretty much all my bitters, although I'm looking forward to trying out the 026 and 037 when that season comes around.