Picked up the Igloo Plentikool at WalMart for around $55. Not sure it's as big though. More cooler type (horizontal) design. It will hold a little more than 24/ 12oz cans to give you an idea of capacity.
Only drawback is it takes a few hours to really cool. So great for LONG trips. Better yet is to plug it in at home the night before and precool it. But that requires an AC adapter (optional of course).
As well insulated as their other coolers though, will keep stuff cool for quite a while after it's turned off. Very quiet too.