Hi, i did the same, i applied for two Medical Biochemistry courses just as a backup at Bham and Leicester.
It is quite competitive, but if you write a good personal statement there is no reason why the should reject you. In my personal statement, i talked non stop about why i wanted to do medicine and about my wk exp, but i still got offers for both the biochemistry courses.
Also this course is one of the offers that can let you go into medicine after getting the degree!
Biomed is no where as competative as medicine, but is becoming more so year on year as people choose biomedical sciences as a lead in to medicine as a second degree.
For this reason also, graduate entry will become more and more competative (both GEP and 5 year courses), with the steady increase in applicants having to go somewhere (non-medical first degree) driving the entry requirements up for graduate students, both in terms of degree classification and in terms of A-Levels requirements being employed by medical schools for graduates (SGHMS expect graduate applicants to their 5 year course to have ABB minimum at A-Level in addition to a 2i) and making a mockery of this valuable access to medicine route.
From consultants I've spoken to, a relevant pre-med BSc carries more clought than an intercalated one, but up until now, they're not that common. Will be interesting to see what happens as we deviants flood the medicine market! I guess everyone wil need to intercalate or they'll be a three tier system in oporation upon graduation.
babies? I can't be trusted with babies - I'd probably lose them!
You don't need to apply now, if you do get rejected from all you application which hopefully you won't and you decide you want to do the graduate route then you can apply with ucas to more places as soon as your final rejection comes through. I wish I could remeber what it was called but my friend did it last year. You get to alter you PS and apply to unis 1 at a time untill you get an offer.