As far as I know Picotto is a brutal DJ, what's the point in booking him?

Anyway if I were you I would try to break in some new faces over there, people who keep it real and don't cost the Earth. There's loads of people like that on this board...

Other than that you could Umek or DJ Rush or someone I'm sure...

I wouldn't bank on the crowd suddenly waking up to techno just because Picotto plays it, unless you put "Techno set" after his name and really ram it down their throat in the PR/promotion of the gig.