I've been considering Medicinal Chemistry also. I think the problem is that it's perhaps too specific, which is why I'm leaning more towards Pharmaceutical Science. In terms of the job industry, you'll find that most unis offering pharmaceutical degrees are based up north, because that's where most of the industry is based. I live in London and don't really want ro relocate, so I think in London it'll be difficult to find a job, unless you do a sandwich course, in which case you might be able to go back to the place you worked at after you graduate.