in short- no! I did a sports science degree several years ago and am just about to complete a MSc physio degree. The job situation is just as bad for MSc graduates and you certainly don't get paid any more than a BSc (I wish!). However, some trusts unofficially do prefer to take MSc grads purely because we tend to be a bit older and have previous degree's- though they don'y admit this is the case! This is not the case in most areas though because there are still loads of unemployed MSc grads....so there really doens't appear to be much of an advantage unless you happen to be applying for a job where the hospital prefers MSc grads

So it's up to you whether you take the risk and go for physio in the hope that things will be better by the time you graduate- I did this 2 years ago and very little has changed (and I'm in a LOT more debt now than I was), you might be luckier though