Hello Andrew
The context: - To go for Master Deg. is always a tough decision and requires you to be graduated in some related field. My opinion is that, Physics can be a very good basis for some engineering fields, specially in some famous and known universities. I recommend you to get professionally mature, working for a couple of years. Try to earn (and save!) some good money. Enough to live with that for one year. In meantime, try to look for same engineering fields, which can be more suitable, to take advantage from your physics background. Acustics can be one of them, as a matter of fact. In terms of your career, try to examine, to enquire if that graduation/master's field relation can gives you some strong background advantages in job-market. This is very important!
An truly engineering Master-Course, will takes you two years, at least! During that period, and if you have a job, think: no more week-ends; everyday, you have to study hard for two, three, four hours, no holidays and if you have girl-friend or family, the need to do a very carefully protocol with them... You know what I mean. But in the end, it's really worth of it.
So, go for it! Good work and good luck.
Merry Christmas and Happy and Better New Year 2003
Cheers!
zzzo