I just hope that the person that you purchased it from was not tell you that is PC3200.
I got some PC2100 in one of the workstations at work.
What motherboard are you using. Some older motherboard will take the PC3200, however it will only treat is as PC2700 (or lower) depending the age of the motherboard.
Apart from that, I got a lot of repect for the Spec-Tech ram. I used them all the time in my PCs. Have not had a module come back.
i dont think you will notice a enourmous difference if you chage the CAS latentincy to 3, making it 3-3-3-7.
If you where to OC to this though, its not that risky to be honest.