Having partaken in the MSc in Computer Forensics I reckon I could throw my two pence in
I had no previous IT qualifications or degree and went in straight at the deep end by doing this masters - having now come out the other end my feelings are thus:
You have to know what you want out of the masters before you do it (I know this sounds stupid but seriously!)
You need to know what job prospects there will be for you after completion of the masters.
Ok, so you have your MSc in computer forensics and want to know what to do next..... easy - get your ass into the police ASAP and join one of the hi tech crime units. Even if you dont want a career in the police you will find job opportunities a lot harder without any police experience behind you!
It took me 6 months of hard grafting to finally get into a hi tech crime unit and even then I had to start as a techie and not a full blown investigator! Salarywise within the police you are looking at anywhere between £20k and £30k depending upon which force you join.
You may of course feel that you want to start earning the big bucks and go straight into private - nowt wrong with that but unless you know you're stuff inside and out and backwards (which you wont until you have experience) you will find it hard to get into. Again, you may have to start in a techy role and be dubbed "an Imaging Munkeh" as that will be your bread and butter until you progress to investigator. Realistaically working in the private sector, salaries can vary from £25k to thru the roof (literally £100ks) depending of course on your position and experience.
I'm sorry to say this again but you REALLY should try and get some police employment on your CV - it really will open doors for you later on in your career.
Saying all that, a career in the police really isnt THAT bad, admittingly the pay isnt as good BUT one thing you will never get in the private sector is the decent cases - the police generally outsource boring and dull stuff out and keep all the juicy cases for themselves

If you really were money orientated then dont forget that with your MSc you could look at taking a crack at managing a HTCU further down the line if you were to stay in the police and then the money increases to £30k-£40kish which aint too bad.
Personally, my plan is to be in the police for 2-3 years for the experience and then go private to earn the big bucks where further down the line I would then start my own company with some contacts and take it even further.
Computer Forensics can be a fascinating area to work in, however you have to have a general inquisitive nature about you - if you aren't interested in trying to solve puzzles and problems and have a mountain of stress then you may wanna look elsewhere.
Of course I must remember to mention 2 pieces of software that you will get to know inside out - Guidance Software's EnCase and Access Data's FTK (Forensic Tool Kit). These courses cost roughly £2k each and that is another reason why you want to join the police - they will pay for them

Plus there is another course available only to law enforcement officials which upon completion gives you 20 credits towards your masters.
My email is in my trust and am happy to offer more information if needed. Hope this lil post helps a bit
So far I have no regrets whatsoever taking that Masters and have never been happier - it really has turned my life around