I've changed my views on the NHS over time and now think some areas need fuller, "real" privatisation. Currently there's no competition for patients and GPs are free to not make referrals whilst pocketing the savings as profit for their consortias. Channel 4 did an investigation into this issue.
This article explains the current problems quite well:
http://www.marketoracle.co.uk/Article36662.html
I don't think privatisation is inherently wrong here, but it has to be done correctly to allow true patient choice without allowing profiteering or other abuses.