I am looking for a Price Comparsion / Review script which . Any paid / Free script out there ?

Specifically I am looking something like this :

maxabout.com
mobiles.maxabout.com/mid0001361/iMate_Ultimate_6150.aspx
mobiles.maxabout.com/compare.aspx?mids=480,257,391

But I need it to be in PHP or Ruby. Now, if there is no script out there like that then could you tell me how much to should I pay to the coder for something like this ?