I just saw an amazing film you may be familiar with,
Russian Ark by Alexander Sokurov. It was shot in the Hermitage Museum,and is a
single 90 minute seadicam shot on high def video recorded to hard drive. I am in awe of the cameraman.... There's more information about the film at
http://en.wikipedia.org/wiki/Russian_Ark
I rented the DVD from my local Hollywood Video, it has a "making of" featurette as well as the film.