I am obviously not qualified, so I cannot say that this is for everyone, but I am suffering from pnd and anxiety, and my GP has recomended an australian web site
moodgym.amu.edu.au/ (prob won't work as a link, but google 'moodgym')
The idea is that is online CBT, and I'm finding it very helpful.
Just thought I would pass it on, let me know if you find it useful.