Got bored...

So, I kept going to see how well things would work, and I'm happy. The 1:1 relations are always loaded but the table structure isn't huge, so the increased overhead isn't much. And at present none of the collections are ever loaded (need to add more service calls that populate these).

However, the great part is that the relationships work. YAY! In WPF at least. They SHOULD work in Silverlight as well... but I haven't done that test yet, maybe I'll get more bored at some point tomorrow.