IF - and it's a big if! - you are interested in the commercial development of life sciences as well as the science itself, consulting could be a great, and rewarding, move. I switched after a PhD in chemistry and have never regretted it.
Have a look at E&Y, who produce well-respected reports in the life science field (http://www.ey.com/global/content.nsf/UK/HS_-_Library) to get a feel for what it's about. Of the strategic consultancies, L.E.K. is particularly strong in life science and bio-tech and would also be worth a look (http://www.lek.com/career/index.asp). Both firms will have a number of people with similar backgrounds to yours, but the sector is sufficiently large that most big name consultancies will have some expertise in the area.