Help: Increase margin above header, center align navigation

Hi tech guys, man I feel bad putting in daily help questions. I actually think i’m very close to being done and just have a few tweaks left. So first, thank you very much for the day-to-day! I’m extremely grateful and happy this theme comes with such great daily support! THanks Devin, Yigit, Josue, Dude, Ismael, and Nick (think that’s everyone that’s helped me so far).

1. By default there’s a header type called “Fixed Header With Social Icons”. I’d like to make this aligned from the center of the navigation bar and keep the search floated to the right. How can I do so?

2. Also, I’m using a notification bar at the top and need to increase the padding/margin of the header to start at 180px from the top of the page (and use the same bar height as default). i added the following but it increased the height, the text is aligned very high, and as you scroll the height stays.

#header_main .container {
height: 180px !important;
line-height: 82px !important;
}

what block(s) of css should I edit to increase this?
you can see the examples of where the header is at http://lapolla.dreamhosters.com/