There's an interesting survey on YouGov. Can't do a link to the specific page but can do a link to the site, from there under the sub heading 'Poll Reports', select:
Yougovresults
then Political reports
then the 25/7/05 report Muslims
It's very interesting stuff (and rather troubling for a number of reasons, e.g. asian community feeling very much under seige, not perceiving equality of treatment etc, not believing that British politicians truly respect Islam....but also I was rather taken aback by one third of respondents attitudes to the question "Which of these views comes closest to your own - Western society is decadent and immoral, and Muslims should seek to bring it to an end...")
yougov site
What should we make of it all? Is there anything we can do as tiny insignificant individuals to influence anything (she asks earnestly)