Thanks again for the help guys. It will be DIY car stuff, nothing heavy industrial. I'm glad to hear people are having reasonable results from Clarke gear, some people seem to slate them, but people who actually own them seem to get on with them reasonably.
TMC225Y, I have read problems with liners can be helped using a stainless coil liner, looks like a tight spring.

Taken from
http://www.mig-welding.co.uk/sip-wirefeed.htm