Ye-acha! Sounds great. I need to read over the site, to get a good handle on some back history. I generally, though, try to avoid that with new sites, just 'cause I don't want to accidentally add knowledge to a character that shouldn't have said knowledge.
Incidentally, I pored over the hp-lexicon, but I still haven't found verification on whether Wizard-Muggle marriages mean that all the children will become a witch or wizard. I imagine, genetically speaking, that the presence of one magical parent will greatly increase that probability, but I don't know if it's guaranteed.