* You can use better GSearch solution with Jumi. Visit http://2glux.com/projects/jumi for Tips and Tricks and look for Google Search
Maybe it could have an option to open search results in another windows (always replaces site window, but it´s fine because the links of search results push the site back!).
Another great addition would be to present the search results in the body area of joomla site, keeping untouched the menus, other modules and ads.
If you want a search with the power of Google in your site, this is your choice.