Hmm...I think I like this :D Most of the admittedly few HP crossovers I've run into haven't been very good, but this one lays the two worlds together pretty well. Interesting that you didn't try to actually put him into Harry's world too much, too, and just used it as a background and launching pad to other things. :)

The idea of how manages to both use, and hide, magic in his day to day anomaly life is a fascinating one. :) I hope you do some fics about that sometime maybe. :)

I like him in Ravenclaw, honestly I couldn't imagine him in Gryffindor, it just doesn't seem his style. :) And I can't help but imagine his skill with a wand must have been about equal to his skill with a gun at first. ;)