I'm currently rehabbing some beautiful, but scuffed cabnets (Craigslist find!) that I hope will become part of my ajustable desk. This is the most informative blog about the paint stripping and repaint process that I've found thus far.
That’s the extent of my painting wisdom…in a nutshell, if you sand thoroughly, clean the dust off well, prime with several thin coats, and paint with several thin coats, you should be able to turn out a piece of furniture with a smooth, durable finish. Also, for chairs this site has great tips: http://southernhospitalityblog.com/furniture-updating-with-black-spray-paint/#
DIY Tutorial: tips + tricks on How-To Successfully Paint Wood Furniture. Follow along on this multi-post blog series of transforming a china cabinet. Easy-to-follow directions and all the steps fully explained!
Apparently I can repaint furniture without sanding if I use the BullsEye primer/sealer, which is supposed to stick to anything, and then do a couple coats of paint. The primer/sealer can be tinted, so if I'm going with a dark color, I'll tint it first before applying.