Combining Search and Login boxes

Does anyone know how to combine two boxes, like search and login boxes...

I want to combine these boxes and ad a picture to make it look supper nice =) iCandy to atract new members...

so my goal is to have one big box with search and login and some custome html around it to make it look cool.. =)

I would start in the Templates Folders: Uni and Base. Isolate the 2 pages and then combined them. I don't remember off hand which pages they are but I run across the CSS from time to time.