answer:I’m looking into it too at the moment and this is what I’ve gathered: From what I read there’s not much point trying with anything less than a 5D Mark II or a 7D, both of which are pretty pricey, as far as autofocus goes. They’re still ironing out a lot of kinks with this. The Nikon SLRs that do video are much more susceptible to the ‘jelly’ effect when the image isn’t stable or when the cam moves quickly. The main limiting factors are the amount of storage you need – it’s probably best to have a harddrive or portable computer along for the ride to offload your shot footage or you’ll run out pretty quickly. Also if you plan on recording audio at the same time you definitely need an external microphone, which adds costs and takes time to sync up to the video in post. The biggest concern from my perspective is the prost-production workflow, which is hindered by the file format the video is saved as, which is a bitch to work with in some editing software and will need to be converted before you attempt to use it. Once you get used to this it’s less work than it seems. I’m also interested the upcoming NEX-VG10 which is a video camera that also has interchangeable lenses, which is the main benefit of the SLR without many of the hassles.