Login tab, move to middle OR to nav bar?

Hi all,

I was wondering if anyone could tell me what I need to do to move the login/signup tab so that rather than being on the far right of the top of the page, it is in the middle? The only way I could get it to work was to adjust the margin for it but this doesn't seem like the right way to do it, there must be a more elegant way?

Also, I'd like to know if it's possible to move it to the nav bar and be in the same position the LOG OUT link is once you are logged in?

Help with both so I can see what they look like, would be fantastic!

Thanks all
Appreciated, thanks Jake!

Is there any easy way to move the original log in tab to the middle as well, just so I can see how that looks?