Hey mate,
Depends on what kind of size you test on.
I use SFS and have a SCSI-IDE bridge as a solution until i get a real SCSI-drive (far better at smaller file load due to seektimes on scsi drives)...
But on big files, scsi-ide bridges is pretty ok...look below
Testing with a 262144 byte, MEMF_FAST, LONG-aligned buffer.
Create file: 6488712 bytes/sec
Write to file: 8995137 bytes/sec
Read from file: 8565100 bytes/sec
Testing with a 524288 byte, MEMF_FAST, LONG-aligned buffer.
Create file: 7786455 bytes/sec
Write to file: 9343746 bytes/sec
Read from file: 7710117 bytes/sec