Cameras for beginners?

I'm a teenager and I want to start getting into photography. It's not my career choice but it intrigues me and I want to learn about professional cameras. I've had an ordinary Nikon camera before (touch screen) with all the basic controls but I was looking for a professional camera within the price range of 200-300 pounds, so obviously nothing too expensive but good quality, takes good pictures etc. Please don't say I'm too young to have a camera like this, I'm not ready for a professional camera etc. Because I'm interested in it and it's a good way to learn as I've had some experience with cameras previously. Any suggestions of models or brands would be useful, thank you. Oh and if you could also recommend online lessons as there are no courses where I live or close to 'me anyway, thank you so much in advance:-) best answer wins 10 points.

Http://www.cameras.co.uk/details/digital-cameras-under-300.cfm

Canon Powershot SX230 HS Blue Digital Camera is the one which comes under your budget.