Danny Ocean said:
heh Kyos, how is that working for you?
That is what I did when I was learning (use exclusively a 50mm) as it helps one appreciate composition and find their range... Currently I prefer wideangles but I use them for sports, portraits, and street photography as they bring your subject out of the background with perspective and not bokeh... I perfer my teles on landscapes as they flatten out perspective like alarge format camera does and distort less. It is not to say I don't use teles for portraits either because I do but I had to learn "how" to use the current lenses I have...
There is no perfect walkaround lens. Some perfer superzooms as it allows you to capture stuff from afar as well as closeup without much movement. I prefer to focus on a subject and "make" a photo based on compositional elements, mood, psychology, & perspective.
A 50mm makes you work more but it allows you to slow down and study what you are making a photograph of...
Good luck on finding the right lens :)