Dollhouse Crossover?

[kaytea.livejournal.com]

Hi guys! First time poster here... I usually follow stuff over on WMTDB (where I review on occasion as aurasoul), but not so much here on LJ.

I was wondering if anyone has come across any CSI/Dollhouse crossovers? I would LOVE to see a past Topher/Greg story with present Nick/Greg. I think it'd be a highly entertaining story, if it exists! And if it doesn't.... it should! :) 

Cheers guys! And thanks in advance!