could that be a raid driver problem, my p4 machine gets about 5mb/sec without the via raid driver installed, with it installed i get about 60 mb/sec even though i dont use raid (single sata disk)
Nope, it's just a single IDE disk, connected to the onboard Intel controller. It's a PII with 440BX chipset. As I say, in Windows it performs great... There is support for the chipset in FreeBSD, everything seems to be detected properly... it just doesn't perform.
I've always had poor disk performance in FreeBSD and linux compared to Windows anyway, regardless of what PC I used.