My vote for a uk lab for colour is http://www.photo-express.co.uk/. They develop and do good scans at 6Mp from 35mm for £4.50 a film. No problem with quality and fast turnaround. As for film recommendation - any top brand film is good. Photo-express don't do B&W or 120. Ilford's own B&W lab gets excellent recommendations. For B&W its really easy to develop your own - you don't need a darkroom for neg developing - just a dark space/changing bag to load the reels/tank. You can get decent scans from Epsons sub £100 scanner with the film attachment - although scanning is tedious and darkroom with an enlarger is fun.