Think I've come to a conclusion about wheels tho.
I want a decent dynamo hub but can't stomach the expense just now. The Shutter Precision x Exposure with decent rims (archetypes?) As mentioned by Andy upthread is what I'd like but funds won't stretch. Happily tho I have found an old pair of shimano LX mtb hubs in my parts box.
So I think I shall be having them laced to rigida sputniks for the moment, and riding through this winter on normal battery powered lights.
You can all now convince me otherwise. Go!