What I want is basically, a Top and Sidebar that follow the screen(always on the same position) to substitute the options on the top of the page(My messages and etcetera). I created a few images on Photoshop using SMF forums to show basically how I want it to be.

On the first Image, since the user is not logged on yet, the sidebar will not appear.

In here, the user is logged on, the top bar shrinks(so it won't use too much space) and only shows the hello message and a Search bar(that I forgot to put in this image, but it is on image three). The sidebar appears, but it is shrunk, it won't display any options unless you click on it.

Now, the sidebar shows the options, and, as long as the cursor stays on top of the bar, it will remain open, as soon as the cursor wanders off, it shrinks again. The sidebar will show all options that are programmed into it(so it has to be customizable), on the My Messages for an example, if you have unread messages, the title will change to "My Messages(Number of Messages)". And if there are more options than displayed, and arrow will appear in the bottom of the sidebar, and putting the mouse on top off it will scroll the options down, the same will work to scroll back up(except that the arrow will be in the upper part and pointing up).
If it is possible to create this, I will be immensely happy.