spotty - what time do you have dinner? If you are more than 4 hours from dinner at the point you are dropping low, then you know it is not your evening fast-acting to blame. So, yes, you need to drop your Levemir. I would try for two units at first, but you'll need to set your alarm for your usual 'hypo time' to check whether that is stabilising you, or whether perhaps you're rising instead. If rising, add back another unit.
Such a shame for the wait for DAFNE - this really angers me because once again people are being given the tools for good control - test strips and insulin - without being given any proper guidance on how to use them. However, I know I have said this before but check out Think Like a Pancreas for tips on how to properly carb count. Also buy the Collins Little Gem calorie counter book which is handbag size. And finally, the BDEC course mentioned above is actually pretty good IF you click through all the various links and exercises. You can do it in about 10 mins if you don't explore all the parts of the site, but if you do it gives you a good headsup.
Brambles - splitting Levemir is actually very effective for most people and in my experience is not just a fob off from medical teams (although of course we get plenty of those too!!)
Glad your son got a pump - I think if anyone deserves it, kids do.
For your son's breakfast, I would try giving him something which is not carb-based. Breakfast is the hardest meal for many of us because of Dawn Phenomenon and so at that time he might be better with something like a boiled egg or an omelette with cheese and bacon (or no bacon if you are veggie). Cereal is a double whammy because the cereal itself is very carby, but so is milk because of the lactose and for me liquid based carbs (in this case the lactose in the milk) goes into my system much faster than solids and leaves me high...
Oh, and another tip for bread lovers. The best bread I have found readily available in the supermarkets is the Burgen Soya and Linseed bread at just 11.2g carbs per slice for a full size slice. Compare that to 17g for many other thick cut breads. It is also full of seeds and releases much more slowly - and so avoiding spikes - than other breads...