All the information you require is here:
http://www.caa.co.uk/default.aspx?catid=177&pagetype=68&gid=777
Details of exam dates and venues can be found here:
http://www.caa.co.uk/default.aspx?catid=177&pagetype=68&gid=197
Exams cost £29 a pop and if you fail an exam you have to wait 90 days before you can retake!! All the exams are MC with 4 essay questions (2 on mod 7 and one each on mods 9 & 10)
You can just sit the exams without enrolling on any courses, or buying any expensive notes, but I personally would put in some serious study before attempting the exams, and certainly WOULD NOT just rely on simply learning online questions parrot fashion.
If you are still in the RAF then you could use your Resettlement to do some short courses and get as many modules under your belt as possible, or, if you have already left then you can still use your Enhanced Learning Credits to help with the financial side of things.
If you are really serious about getting your B2 then you have to be prepared to put the effort in and do some study. I spent 8 years in the RAF as Avionics, and have just completed my years civi experience, it has taken me nearly three years of self study to pass all my modules, and a lot of hard work over the past year to get my log book filled up. I can honestly say that if i had a pound for every time i heard "I’m going to do my licence" whilst in the RAF, I would be well on my way to early retirement, whereas I only actually know of 2 people who have actually gone on to do it, and not given up when they realised how much hard work it would be.
Ranting apart, if you are really serious about it, then good luck to you, there are loads of experienced guys out there who will help you through, as IFixPlanes said, take a look on
www.airmech.co.uk and ask the guys you work with, you never know you may even find a company willing to help with the financial side (if you are VERY lucky).
Hope this helps and GOOD LUCK.
