Any software utilities for dual monitor setups?

[canfraggle]

Just got my dual monitor setup... works very nicely despite owning one ATI card and one nVidia card. Any utils, tips or FAQs anyone can point me to? Some interesting hacks would be nice, like being able to put different desktop images on each monitor? Or allowing the start bar to stretch across both monitors? Any help appreciated...

 

[Shogun]

You may find something here.