My wife started photography with a Nikon D700, and she is very happy with it. And the pictures she takes are excellent. But it very much depends on how serious you want to be. If you just want to play around a bot, get an entry model from Nikon or Canon. Otherwise spend some money and get a camera which is suitable for serious work.
The one you use.Wanted to know what's a good starting Camera.
Have a look at www.photo.net for resources. Lots of helpful people there who are eager to give advice to beginners. There are lots of forums there including one for beginners.
I'd avoid courses (online or not) because there really isn't much point to them IMO.
I'd also repeat the two commandments of photography which all photographers can benefit from:
1. Look at lots of photos.
2. Take lots of photos.