Nikon D5000.
Video clips. Articulated LCD. Stills. Nikon metering. Nikon F-mount accessories.
F-mount, so lenses dating back to 1959 will go on there with no mods...that opens up about 30 million "pre-Ai" lenses to you for experimenting.
Older,manual focus macro lenses work on baby Nikons. Old teles and wides too.
Want a 300mm f/4.5 ED glass telephoto with internal focusing for $250 used? F-mount, totally. Want to be able to control f/stops on reversed lenses? Nikon mount. Want to be able to use $5
eBay extension tubes to make a $10 pawn shop 135mm f/2.8 lens a close-focusing lens AND have the ability to your f/stop? Uh, F-mount.
John Shaw books on close-up photography on how to use Nikon equipment. For the beginning photographer, or the person who wants to TRY OUT things like macro lenses, extension tubes, reversed lenses, low-cost telephoto lenses, and really AFFORDABLE accessories, the Nikon introductory-level cameras, what I call the "baby Nikons" are far,far better choices than the entry-level Canon bodies. Canon bodies require electronic extension tubes, electronic telephoto converters, and electronically-operated lenses of recent vintage and high demand; with the baby Nikon's you can buy millions of F-mount accessories and use them. Nikon is a better system for low-budget macro and low-budget telephoto and "experimenting" than the EF mount is, simply because it's an older system that uses the SAME, identical, mechanically controlled aperture system in every single Nikon camera body made from 1959 to 2010.
Canon is a great system. I own some nice Canon stuff, but for people who want to be able to buy and use low-cost lenses and tubes and do macro on the cheap, the entry-level Nikons are very adaptable. Like gsgary suggests--the higher-level Canon bodies are pretty nice too. If you go Canon, buy their middle or higher-level models and you'll be very happy. If yuo only want a body,kit zoom,and a flash, and one other lens, buy anything you like--Pentax,Sony,Canon,Nikon, Olympus.