Customisation on Joomla Section Design

Hi there, Just a quick job needed (I think!). In short I'm wanting the following: To add an additional design for the section template, so I have the default and a new one called "ftp". This is so I can style the two differently and give each one a unique feel (I will do the design work). The new design will be assigned to a specific section ID. An example of what needs to be done is found at [login to view URL] Anyone able to do this? Time is a massive issue and I need it finished by Saturday 4th June. Thanks in advance,