Howya Roy boy! - Hows da foot?
The AA used to do pre buying car inspections in the UK but last year stopped doing so. On their website they now advise using DEKRA (which is originally a German inspection firm I think) to do these inspections.
With regard to prices - DEKRA do a "Budget" and a "Plus" inspection - prices can vary depending on the engine size and car type but for a 2002 Mondeo it was £150 for the Budget and £200 for the Plus.
I used them when I bought my car in the UK and found them very good - after I had booked the inspection the mechanic called me directly, before talking to the seller, asked if I wanted to check for anything in particular. After he drove and inspected the car he called me, gave me the report, added a personal recommendation and then 6 days later an official copy of the report arrived at my house (7-8 pages long I think).
There are other inspections you can get, I think the RAC do one, and there is an association of independant garages that provide a service but I was very happy with the DEKRA one.
Link to DEKRA [broken link removed]
Any other questions just give us a shout like
efm