> A good ATA133 drive will deliver 45-50 Mbs sustained sequential, which
> is marginally better than the max one could get through a UW-SCSI card. 
> Modern ATAPI devices are also using (including? inheriting?) a large
> portion of the SCSI command set, and things like SATA NCQ are derived
> from SCSI's TCQ, even though they are using a completely different
> physical/eletrical connection, so the differences are converging to an
> extent.

isn't NCQ only available in SATA II, not SATA (I)?

furthermore there were lots of other (SCSI) features (S)ATA still lacks...

timo