Try AllianceMFG from Exact Software
http://www.alliancemfg.co.uk/
There is downloadable demo available from the web
They have an office in Leicester
Wont blind ya glowing references etc, read the blurb on the site, try the demo, even call them and arrange a more personal demo.
Of course my view is a tad biassed as i've just spent that last 6 weeks inputting all our data into it and verifying it. Message me if ya need any more info.