If you find the need to have BOTH the 'Sign-Up' and 'Sign-In' buttons on the top of the lead page, I'd like to see the "Sign-In" button more prominent and to the Left of the "Sign-Up" Button instead of equal size and to the right where it was placed in the recent make-over.

You only need to sign-up once, as far as I know.

About a third of the time I click on the "Sign-Up" button by mistake, so I'm guessing that subconsciously I must think it should be the first button I am able to click on rather than the second.

Better yet, get rid of it (the 'Sign-UP' button) altogether on the lead page. I don't think it should be in that location anyway.