Let the hive mind of Engadget get that for you.
"I commonly need to boot a system from an external disc and take a snapshot of the host system. I also then need to burn a copy of the image to a DVD. While I can do it with two separate external devices, and two power supplies, and two I/O cables, it'd be nice to find a small dual-drive enclosure. It would need to have USB, eSATA, and FireWire. Either slim-line or half-height bay for the optical burner would be fine, and space for either a 2.5- or 3.5-inch hard disc. Any ideas?"
and before you scream unreasonable price, this is not trying to be a netbook, it is a ultra-lite laptop designed for mobile professionals - 'Road warriors'
and if that is too expensive for somebody who doesn't need it to buy it for fun, who cares? IT IS NOT NETBOOK.