Free -- The original product page has information on bays, dimensions, etc.
$10 -- Product review here
$40 -- Play movies from your computer on your TV!. Product review here
$40 -- Great for when your on the move and want internet. Product manual here
$200 -- Great for the kids, watch movies or play games on those long road trips. Product page here
$100 -- Two speakers and one subwoofer, has an iPod/iPhone dock and remote. Also has CD & aux in
$50 -- info here