For some years after Nikon brought video to the DSLR world with its D90 , the company pretty much ceded that market segment to Canon, which was first to market with the 1080 and 24p options that really made DSLR video a force in the indie feature and TV worlds.
Great sensor; superb auto-focus, customization and ergonomics. Any flavor of HD (compressed to H.264, of course) that you could want
Has all the same limitations as an HD capture device that all DSLRs have (because video functionality will always be a secondary consideration in designing cameras used primarily for still photography).