If you are a keyboard junkie as I am striving to become then you really need to know how to move from tab to tab in Safari. All you need to do is use the Command + Shift keys and then add the left or right arrow to move from left to right.
NOTE: This is not the same as Firefox, in Firefox you can only use the Keyboard for the first 9 tabs. You need to use Command + 1-9 for the tab you want to open. Example if the tab you want is 5th in line then use Command +5.
I like using Safari better for this reason alone.