i have loved my 5n and have used it for landscape and studio shoots incl wedding video actingheadshots at facebook.com i am always going to look at Nikon and Canon and have major camera envy but only when looking in the $2-$3K range such as the D800 or Mark-III.
in the $700 price range, it might not be so easy to find a DSLR with comparable low light performance and video performance with a good video lens (1920x1080-60p with continual focus and VERY smooth manual zoom). 60p is essential for slow motion and frame grabs.
The kit lens is very good but isn't very fast from an f/stop standpoint, so if you are going to require a very fast lens for studio work, you might be limited.
- if you are going pro and will invest in fast/expensive lenses, go nikon. you will most likely upgrade your camera for better low light performing model and use the same lenses
- if you need low light resolution and compact/travel friendly camera and/or shoot video, go sony. you cant beat the price/performance.
from a video shooting standpoint, nikon kit lens will not do. you are going to have to spend some money there. most lenses are built for stills an the zoom or focus rings are a bit choppy. it looks terrible on video.
21megapix of the nikon is nice, but most people won't take advatage of it unless they are cropping their shots in a major way which usually happens when you don't have the proper tele-lens. I would personally opt for better low light performance than 5 extra megapixels.
one thing i recommend is purchasing an LCD viewfinder (less than $20 on ebay). It makes a huge difference in daylight an also in stability since you use your entire eye socket as a 3rd contact point (you becoem the tripod). added benefit is that you are always shooting in live view with live feedback so shooting in manual controlled mode is very easy.
in the end, the only reason why i would go Nikon would be to be for the privilege to drop another $2K in a fst lens, but otherwise, there isn;t anything the 5n can't do...


