Dan's Data has posted a review on HighPoint's e.SATA system
HighPoint's e.SATA system is, if you believe their PR people, better than SCSI, better than USB 2.0, and possibly also better than backrubs, kittens and Johnnie Walker Blue Label.Read more
I think e.SATA's OK, if a bit weird (seriously, guys... why the FireWire cables?). I've got a considerably lower opinion of HighPoint's claims for it.
I talk about what e.SATA is, and what it isn't, in my usual unnecessary detail here