I used to shave for a period of about 8 years, but not anymore. It definitely shows a lot more definition. Hairy legs are not really attractive. The only problem is that with us hairy guys, you really have to shave like every day to every other day or everbody is going to be noticing your stubble and not you muscles. Shaving takes too damn long.
Other than that, I'd say give it a try. But start out with just the legs. That way, if you decide its not for you, just wear long pants until your hair grows back completely.