BestPrice is a fast and easy search utility to compare prices on the
 Net. Choose from the picklist of search engines those you wish to 
query then enter a few keyword to quickly get the links to the 
product you want at the price you're willing to pay. Boolean searches
are supported to quickly tailor your requests. Sort on description, 
price or source by clicking on the list header. A click on any listing
in the return window will launch your browser and take you directly
to the selected purchase site. A picture preview window offers a 
shortcut to see what the product looks like without going to the Web 
page. 

Install: Just double click bp13.exe, it will install automatically.
Uninstall: Go to 'Programs|Best Price', select 'Uninstall Best Price'.
System requirement: Internet connection.