I found this excellent website which may be of interest if you are looking to view mobility products without the hassle of a salesman breathing down your neck. There are also some very interesting disabled related articles.
SCIL is an organisation run and controlled by Disabled People. We support Disabled People to live independently and campaign for an inclusive society which does not discriminate against Disabled People. We believe that Disabled People should have the same opportunities and quality of life that non-Disabled people take for granted.