Welcome to the addiction milky. I did my first lessons at Milton Keynes and made a couple of trips to Hemel. Great way to get the basics out the way before you make a trip. Changed my life though, so be careful, I now live in New Zealand, with a huge deciding factor on that move having been snowboarding.
Check out Dave's thread "Having a blast" its a good read from a fellow brit learning indoors. Ever fancy a trip to this hemisphere let me know