Pete,
I did my diss at Solent two years ago now. Survey monkey or similar is a good idea, they dont involve downloading, they record the answers provided, and produce statistics of the results given, taking out some analysis work for you.
I downloaded the questionnaire, but theres no mention of how to send you the filled out paper, Ive filled it out and its sat on my desktop!
Unfortunately, the general public are on the whole;
1) Initially wary of studies asking them to be participants *****ill they have the requirements explained),
2) Unwilling to help; nothing in it for them.
3) Generally lazy to the research process. They expect to be asked to make the least amount of effort possible, otherwise they'l leave it. Therefore, you need to make your questionnaire as easy for the respondants to complete.
As a pointer, people are wary of downloading things onto their computers these days due to viruses etc, so an online questionnaire appears safer. More over, it's an effort for them to email it back to you (providing they have half a brain, and that half has the initiative to realise you put your email address in your original post.
I've been through it (twice), so know what i'm talking about!