I forgot that the two 80's are in a RAID0... that complicates things. As far as a USB RAID controller, I've never heard of such a thing. But you could still get a couple adapters for the laptop harddrives so that you could plug them into an IDE or SATA raid controller and get the data off them that way.
Because of the fact that these are laptop harddrives in a RAID0 (which this is the first time I've heard of such a thing being implemented) makes this quite complicated. It'll be a long, drawn out process to get them to work in a desktop-
PC, but whether or not it's worth your time and money is entirely up to how important the data is to you.