I have looked at 6 places in the last week, i have found that some people show you around and then let you wander around on your own and other spend the hole time with you. I asked about the neighbours and looked in the cupboard etc to get an idea of how well the house has been taken care of. Were are you located? there are some great deals on new houses at the moment with some builders offering a 75/25 or 80/20 scheme defferring the morgage for up to 10 years, makes it easier to get in some times.
Dont be afriad to ask questions as you potentially will part with alot of money
Mike