Yup, eggs are great! Meat is great... I was told to eat protein with every meal, even snacks. You will need to read labels on everything. Northern gave you some good tips! For me, I had/have to keep my carbs to 1 or 2 servings per meal. So, between 15g and 30g for me per meal. Usually, I eat less than 15g carbs per meal.
You can have things with "fake" sugar in it ...not sure if the sugar substitutes are the same in the UK as they are in US but I eat Splenda when I really must put something sugary in my stuff.
I have diet controlled GD as well, so it is possible and not horrible. Once you get used to it, I almost think I could keep eating like this forever.
For me, breads are the worst! White flour is my enemy and although I seem to be able to tolerate it slightly more than I used to - I still mostly avoid it. I now use bread for sandwiches that has 5g net carb per serving. Remember, when you count carbs you subtract the amount of fiber in it from the total carbs. Those don't really count. The amount of protein you eat also helps to slow the absorption of the carbs to your blood stream. Although, there are some varying degrees of how well this works depending on the type of protein.
My meals usually consist of meat and veggies. You can have salad and condiments like mayo and salad dressing are usually "freebies". Yes you can follow a Low-GI diet - but it will still be trial and error.
Some things one person can eat; others cannot. I can eat certain amounts of rice and potatoes but some people can't eat that at all.
Cheese also has like no carbs in it... I eat a lot of nuts and cheese for snacks. Yogurt is ok for snacking as long as you can find one low in sugar and high in protein. I have to go to a special grocery store to get the stuff I eat.
When you have time check out the thread from the start - we have great stuff throughout the entire thing.