Try some AB or multi variate testing. It neednt cost the earth, or anything.
You can use content experiments via Analytics.
A few comments on current home page:
- The images on the home page look like ads rather than navigation. I dont think that works.
- What is it you want people to do when they get to the home page? Do a wine search? If so make the wine form search facility more prominent.
- I would include 'any' in your dropdowns. Its feasible people get to your site and dont know what winery name they want.
- Get rid of 'start over' you dont need it until they've done a a search.
- Look at your in-page analytics and see where people navigate to from the home page. That will tell you alot about what you should be featuring more on that page.
Andy