i need to get me an slr i think!!
Plenty on eGay. I shoot with a Nikon D70 at the moment, it's not fantastic by modern standards but it is a good way to enter the SLR world. Nice and easy to use, all the features you'd want and they can be had for a few hundred quid now if you look about. Have a look at my website to see some of the stuff I have done in the past...
www.digi-fish-photography.co.uk
A word of warning though. Digital SLR photography, as a hobby, is mind-numbingly expensive. I had a Nikon SB-600 flash gun for Christmas. It has quite a few features, but in the grand scheme of things, it's quite a 'cheap' flash gun. This price tag? £150. A decent lens will set you back the best part of £2-300, and you can add another zero to that if you want something 'pro'.