Hi Alan,
I am in a very similar situation to you. I was diagnosed with T2 a few weeks ago, and am initially aiming for control by diet. The difference is that I got to see a nurse within a couple of days - the end of June sounds really bad, but I guess that this is the usual NHS postcode lottery.
Before you get to meet your nurse you should learn all that you can about the condition, and you should try to get your BG down as much as possible. What your nurse will almost certainly tell you to do is to follow a low sugar, low fat diet eating complex carbohydrate at each meal. This is quite similar to the GI diet, and there are many books and web sites devoted to that. This seems to be the standard NHS advice. You will quickly see, if you peruse these forums, that this is not the only approach to diabetes control and many people have more success with a low carbohydrate diet (rather closer to the Atkins diet, but with more vegetables). Everyone is different - the trick is to find an approach that works for you.
At the moment I am following the NHS line, and it seems to be working (my fasting BG is mostly just below 7 and it usually comes down to under 10 within a couple of hours of eating) - also I was mildly symptomatic, and the symptoms have largely disappeared. That said, I would like my numbers to be lower, so in the future I intend to experiment with a low carb diet.
The other thing that is really important is exercise. Increasing the amount that you exercise will help a lot (this is probably as important as diet). I have taken to cycling almost everywhere, and aim to spend at least an hour a day on my bike. I am also investigating treadmills, to make exercise more convenient in the evenings or when the rain is horizontal!
One of the other things that your nurse will probably do is give you a stack of leaflets. The most useful one that I got is produced by Diabetes UK and called
Understanding Diabetes: your key to better health. You can download an electronic version directly from their web site. You might also want to invest in some books (I certainly did). Two that I am finding useful are
Type 2 Diabetes: The First Year by Gretchen Becker and
Type 2 Diabetes: Answers at your fingertips by Charles Fox & Anne Kilvert.
Lastly, keep an eye on these forums - there is a great community here and a lot of good advice to be had.
Good luck,
Tim.