Thinking of converting my 100mm hardtail this year and going full suss. Is there any frames available for £500? Or do I need to up the budget. Mainly xc and trail centres. So 100mm or 120mm

120 mm from the big S
http://www.bikescene.co.uk/Specialized-Camber-Comp-26-Frame-5977-92-0.html

You’d do well second hand for that budget!

I’ll have a camber frame similar to the above for sale soon as I’m going to a hard tail.

This is my dilemma. I’m looking for a do it all bike. Xc and trail centres and maybe try some rougher stuff. My riding will never involve huge drop offs. Currents bike is a 100mm 26 inch hardtail

I didn’t like my Camber at all but it might work well for you and that is excellent value- barely more than a used one in fact. £500 gets you quite a lot of choice for used.