To tide you over until eSATA ports become more widespread, here’s a interesting solution: a
USB to SATA adapter. Plug the little dongle into your USB port, and jack a SATA drive into the other side, and
, you’re set. The major problem is that USB’s throughput goes to 480Mb/s whereas SATA’s max speed is 2.4Gb/s, so you won’t see full SATA speeds. Still, if you’ve got a SATA drive you want to attach to a laptop that doesn’t have SATA or an ExpressCard port—say, a MacBook—this might be a good solution.