Want to modify Top simple nav + left subnav + 1 col

[clarkac]

Beware, I am a beginner at this...

I like the above menu scheme, but on the home page you get a big space where the left navigation normally appears.  I would like to modify this menu system so that, on the home page only, this space can be used for an extra column.

Can anyone help with this?  Thanks.

[clarkac]

Further to this... 

I guess what I need is "Top Simple Navigation + 2 columns"  - but only for the home page.  Any suggestions on how to do this?

[Dr.CSS]

When editing pages you can specify which template the page uses, so every page on your site can have a diff. template, such as this site...
http://multiintech.com/