I've heard a lot about the new hard drives that run on the Udma 66 speed mode.

Is this just technically speaking or are these drives really twice as fast as the normal Udma 33 mode ?

I know that most regular motherboards aren't supporting it but if they do, will we need a controller upgrade in windows such as we needed to upgrade the hard drive controller in win95 ?

If anyone has some info ... please tell me because i'm considering to buy the
IBM 22GXP 22GB hard drive.

StRuPiE