Gaming ladder needs to be themed

I need to have a gaming ladder site themed. Right now I am having the script modified. The script came with a drop down option on the home page to select 1-4 different basic themes. They stink. I only want 1 theme for the site. I need this site to look extremely professional. I'm looking for a tech like theme with simple yet smooth rollovers ect. Every aspect of the site needs to match. The banner, I can have done. I'm not sure what will need to be done in order to accomplish this. I would like at least 3 different designs to choose from, so I can get feedback from members and co-owners. Future projects are gaurenteed if this works out smoothly. I have another script that would need to match the site and, and matching a VBulletin forum also. But right now I'm concentrating on the main site. Here is a copy of the script, and a link to a working demo of it.