Thanks to both of you for your comments!
Hi Tasha. My undergraduate degree was in IR yes, at Aberystwyth. Yes I have had the same thoughts regarding your points about doing an MA in straight IR. It appears to be a trade off between going over old ground and retaining the ability to do a wide range of module choices.
Yes as you say they are both very good institutions and very similar in reputation. St Andrews has the benefit of fee's just over four thousand less than Warwick (While not a deciding factor for me, it is still something to bare in mind) and a program size of only 15-20 students. While I do not know the program size at Warwick, I expect it to be much much higher. Wether that is a cost or a benefit is debatable.
I think the problem is that while I am very interested in MECAS, I still have a broad interest in many ranging fields and regions in IR. Yes part of the problem is I am unsure exactly where I would like to go after masters. I would love to do a PHD if I prove to be academically capable, however I'm currently unsure as stated. I have had mixed responses from academics and fellow students at postgrad level regarding how masters may shape a PHD. Some say that you may be expected to do a PHD in a MECA or Inter Sec field if you do that at masters, others say it does not matter as you have a background in IR and produce a strong proposal it would be fine. As you can see that despite researching my postgraduate future extensively, I have lacked advice regarding the positives and negatives of specialising and making my choice on a personal level.
I think as you said there may be strong benefits to specialising more as I do not have to cover as much old ground and would aid any future ambitions in that employment/academic sphere. However while I agree what you said that a broad IR MA does not always help, its more about if going the other direction hinders if you wish to divert from MECASS in the future. Lastly regarding the language track, that option at St Andrews does look attractive. I have always had an ambition to study arabic and St Andrews does have Arabic and Middle East expertise. I would however spend the summer giving myself a crash course/ summer course in it to see how I take to the learning and make the decision on that basis. But it is a nice bonus opportunity and is attractive to employers that you have a basic grounding to build upon.
Many thanks for your thoughts, certainly have helped!