C5 Paint/Scratch Repair

[gsmcoverage]

Some lovely specimen of an individual keyed my car last nite :furious: - i had only left it for 10 minutes (ok parked on a pavement). So now there is a great lovely scratch on the rear drivers side panel about 8 inches long.

Got a couple of names from here:
http://www.pistonheads.com/gassing/topic.asp?t=83963&f=127&h=0

Ewelme and MechWorks seem to be the best...

Has anyone used ChipsAway or some other scratch repairer near Reading?