Riding rigid / hardtail definitely teaches you bike control and how best to pick your lines on the trail. You'll get more for your money than you would with a full-susser, and there's less maintenance.
That said, I love my full-susser and 9 rides out of 10, that's the one I throw a leg over. I put my time in on hardtails years ago though, and I'm definitely a better rider for it.
There are some decent forums like mtbr, singletrackworld and pinkbike. There's probably chunks of info on the websites of the major retailers in your area too. You can always ask any questions in here, and feel free to badger the guys at your lbs. Grab a few brochures and a magazine or two while you're there, and do a little reading on the loo.
Is there anything in particular you wanted / needed to know?