Forum Moderators: open
always nice to hear a success story on PPC, partuclarly when its being tracked all the way through to a sale.
I take it you have exhausted keywords for your industry, and have every single angle covered :) (you probably do)
a few months ago I would have advised going direct to MSN for a featured site listing, and also to ASK.co.uk for a similar deal, but those frankly aint happening anymore or wont be suitable in your sector.
obviously you are in a market where there is a demand for your product, so maybe look at things such as affiliate programs on a CPA deal, you obviously know what your ROI is, so could be a good route.
as for PPC, there really aint much left in the UK, apart from what you have mentioned.
Shak