laguna seca trackdays in jan 2012?

hi,
i'm from switzerland. i do private coachings on european tracks. now i got a customer who want's to ride laguna seca in jan 2012. is that possible in this time of the year, and are there any track organizers you can recommend? rental bikes?
btw, if you like to experience the best european tracks www.fast-travel.ch

thanks for your help

peter sporri