Questionnaire - things to ask

I'm planning a short questionnaire to be handed out to customers for a local business regarding their website and their customer's internet usage.

Just wondering, if you could ask future users about a website you're planning on building, what would you want to know?

So far I've got;

1. Search engine preferences (Google, Yahoo! MSN etc.)
2. Broadband or dial up?
3. How they found out about the business?
4. If they have visited the existing site, what was the purpose of their visit?
5. How could the current site be improved?

The business is a bathroom retailer / fitter which I'd prefer not to disclose