I was recommended this...

Should be useful to some of you wanting a budget product

http://www.valeterspride.co.uk/

Seems like a good deal could be had will have to have a proper look. 

I've used their stuff before, G850 is a good all-rounder much like Autosmart G101 and the TFRs are effective and dilute well. The latter would probably not be much use unless you're running a valeting business.