F5 Command Key

I got a brand new Dell Inspiron 17R today (and i love it with the i5 processor), but the only problem is that to use the Function keys you have to hold down Fn to use them because of all the other keys sharing the same one, and I was wondering if there is any I can change the F5 default function of refreshing whatever you are on and put it on F6 since there is no other command on that key, but Function 6, itself. Thanks!

There is a more programmatical way of doing this, but since it's a global hotkey you're going to have to "unregister" that first before you can use it on another key. And also making sure that the next Function key you chose isn't occupied with another function that could cause conflictions.