Sorry about that terrible title.
Safari is actually pretty good. It's definitely leaps and bounds better than Internet Explorer (which isn't really saying much).
In my humble opinion though, the best browser for your buck is
Firefox 3 (there's really no "buck," it's free
), hands down. No contest.
It's a little bit faster and it's unbelievably customizable. There are something like 5000 available extensions for it. You can seriously make FF do anything you need.
Like I said, nothing wrong with Safari, but give Firefox a shot.
(there is even a theme to make FF look exactly like Safari)