*provided i needed RAID5*, that's a no-brainer. it's noticeably better than any of the other RAID5 offerings i've tried, and likely cheaper than
DEC makes a screamingly fast RAID 5 box...
RAID0+1 with anyone's discs and arrays. administration interface, snapshots, ease of dumping and nice blue faceplate (just kidding) are all factors for me, too.
Service is also an important factor, which NetApp is +very+ adept at.
David, if you buy F330s, though, make sure they send you BLUE NettApp tee-shirts. We bought a pair of F330s last fall and are still waiting for ours. Maybe their sales department needs to take lessons from their support department... ho hum!
-Caroline