Matthijs:
A DSLR is overkill for this person. The SX10IS has a 20x optical zoom lense and 4x digital zoom to help with those long mountain shots while hiking or biking. Plus it's all self contained - no need to buy extra telephoto or macro lenses.
Having been a professional photographer, I can tell you the best camera is the one you have with you and that you use. DSLR's require a lot of baggage.
JohnNJ