To anyone whose interested:
After contacting several universities I know fo fact that the following will consider an application from you if you have a 2:2 + PhD
Cambridge, Queen's uni Belfast, Oxford, Warwick, Imperial, King's, BSMS and I think either Dundee or Durham but i'm not sure about the last one.
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Applying for 2009
Cambridge GEP
Warwick GEP
BSMS
?????????
Bad UKCAT (600)

2:2 Biological Sciences BSc Hons
MSc Molecular biology, Distinction
PhD Biomedicine and molecular biology
89% average in University foundation year program 1998-1999
(I know my chances are very seldom but I thought I'll give it a shot)