For info, Kwik Fit Eccy Rd did ours at VERY short notice on Friday when I realised the MOT was up as well as the car tax. I wouldn't have taken to them normally though. Can't complain about the service, mind.
Paul, given you live near the Foundry I'd recommend Graham at the wicker arches. It's something like WGC Autos but you can't miss it. Neil and I have both used him for years and he's cheap and reliable. On the downside you don't book in in hour slots - it's a leave the car there for the day sort of place.
For future reference, Dot Mot just off Queens Road are great - totally independent (they don't do any repairs so have no vested interest in failing you) and are not overly strict.
Steve Plain is a legend, I've been going to him for years. He does/ did a bit of climbing and is entirely honest.
Scrap that, gone for DOT after mark20 said it passed his car! Cheers for the 4 year old recommendation, Bubba.