All these sites offer expertise in their fields and you will find them helpful.

Probably the best site there is for imaging.

http://ukastroimaging.co.uk/forums/index.php

Order from here and it's on the way almost before you order it

www.modernastronomy.co.uk

For your CCD camera, Cabling and other P.C. connectivity requirements.

www.coxellis.net

Maidenhead Astronomical Society,UK

Has a large range of links covering all aspects of astronomy.

http://uk.geocities.com/maidenhead.astro@btinternet.com/index.html