Fill this rectangle button with yet another gradient, going to opposite direction again (light at the top now) and give the button a dark border by choosing Edit > Stroke. Copy this button a few times, and lay them along your navigation gradient.

Add some text to your buttons, and you should have something similar to this.

Now select the gray portion above your header image as shown below.

Fill this selection with another gray gradient, dark on the bottom, light on the top.

Add your title to the left of this new rectangular gradient, and decorate it however you like. I just add a little purple tint to the top.

To make it look like your title in inlayed into the gradient below, we are going to use the same technique we have been using! Ctrl click your text layer to get a selection of your text. Make a new layer below your text layer, and choose Select > Modify > Expand. Expand your selection by 5 pixels or so, and lay another gradient in your selection going the opposite direction of the one below it. Your title should look similar to mine.

Looking good? On to the next step!