This is random, but for some reason the thought of a スーパーナチュラル episode that merges with psych really appeals to me...am I just insane, または is this plausible?

Yes quite plausible

This is スーパーナチュラル - anything's possible!!!!! The Winchester's would act the Psych boys off the screen though - so maybe not a good match up :-)

I'd 愛 that idea! BTW, have あなた guys should go to youtube, look up スーパーナチュラル Psych Opening, and watch it! It's the Psych theme song, with clips from Supernatural!