access to music do some good courses, the best thing is they are FREE if you earn under £30,000 a year (phew just made it in, by about £29,999).
http://www.access-to-music.co.uk/

i learned loads on the "creating music through technology" course i've just finished,
they didn't have loads of fancy kit, but the tuition was excelent, and we learned from geuinely experienced and talented tutors (dj skills taught by Mike L who came 3rd in UK DMC finals a few years ago), big thumbs up from me:)