I have two OCZ 3000 that did 2.5-3-3 at 210 MHz (DDR420), but I did NOT run a torture test since my PCI was too far out of spec to risk hard drive corruption. Both compare as well or better than Samsung or Corsair PC2700 CAS2 DDR. One of the online vendors was a scammer ( you can probably get the name here but I do not remember) that sold bad stuff. I buy my computer parts from the Computer Swaps in Southern California from the vendors that have been around for a while.
Last weekend I bought one 256 Meg OCZ 400 (supposed to be the latest stuff) which seems to be faster. But, I am not an expert!
Also, my only computer that is up right now is crappy P4S333-M with no DDR voltage adjust and no way to lock PCI/AGP freq to spec. So, maybe this data is not meaningful. These might be selected Hynix (?spelling) chips.
John