allstarnz:  Maybe a simple questionaire on there?  A wizard giving advice based on the scenario.  Where do you live?  Do you have Sky etc etc

Already done:  

Not as good as it could be IMO, the big issue I have is it just says you need a UHF antenna no matter the signal level that you are in with the supplied address. IMO that will push people to sky for the lower setup cost needlessly.