The photos currently on Flickr are as taken. That is they have not been modified in anyway (no cropping, resizing or photoshopping). I mainly take photo's as a way of recording my travels, not for their artistic merit - although if they have some merit so-much-the-better.
I currently use a Canon 40D with a Sigma 28 - 200 image stabilised lens to allow me to travel light. I have set the camera to take RAW and small JPEGS.