£19.99 for hpi... Pistonheads have a link where its 5 for £30 quid or somet and when you HPi the car you buy you register the Chassis number etc and it gives you the full HPI protection.

I've used it and I know Tiff has as he told me about it..

Also.. why not try the text check ones to start with, I've used them loads of late and again know loads of people who have too and never heard about calling premium rate numbers as the reg wasn't recognised...

Hope this helps