After digesting loads of scuttlebutt here lately, we're elated to see that Pentax has finally come clean with its new K-7 DSLR. The 14.6 megapixel shooter packs a rugged magnesium alloy body and arrives with an HD movie mode that captures video at 640 x 416, 720p (1,280 x 720) or 1,536 x 1,024 -- all at 30fps. Needless to say, that's more than the D90 and D5000 offer (both top out at 720p), and wh