Maximum transfer rate of about 81MB/s not much high for me actually! It probably can give upto 60MB/s average read. If we assume that, there is no possibility of RAID for desktop systems, it might be the fastest drive for 'Single Drive' systems for a good fortune of money. But, a basic PATA RAID system by two 80GB 2MB cache 7200 drive, (by Seagate, WDC, Maxtor, Hitachi or Samsung no matter, currently available drives sold at the market!) gives upto 115MB/s maximum and 80MB/s average read for a budget & bargain system. You can get a little more space, with 1,33 faster average read, but half the price of a single 150GB WDC, compared with 2x80GB 2MB cache drives (as I have mentioned, HDD brand is not much important here!) including RAID 133 Card (by Promise, High Point or Silicon Intgrated Systems PCI cards from PATA connection or SATA as well etc.)
I mean, it is not so much fast, 4x expensive, not the only solution for a fast desktop. It is a good development with it's shiney window that I must say. (But I prefer mixed color of flashing led's inside the drive! Why not like ordinary 8, 9 or 12cm fans... hopefully guite sooner!)
If you really deserve it, it is logical to use them with SATA 300 system with RAID configuration. At that time it may reach maximum transfer rate of over 150MB/s, and average 120MB/s compared with RAID SATA 150 tranfer rate. But, using 2x150GB WDC may probably give maximum %10 performance gain over using it on a RAID SATA 150 system. For some, %10 is very important as you know! Another good thing is MTBF 1.2 Million hours.
Actually I have a PATA RAID system on a Digitus PCI RAID Card with Silicon Integrated Systems chip with 2xWDC 2500SB on a PCI bus with MTBF 1 Million hours. I have about 125MB/s maximum transfer rate with 90MB/s average read. NEW drive with RAID configuration is 1,33 faster than my current RAID system, but 0,6/1 of my total capacity with 2x expensive price! I do not want to critize the capacity and the price, everyone knows them. Results are obviously clear. Although, the current speeds are not too big, there is very little time left for PATA drives, SATA 300 is on the New Autoban. Of course sooner or later, it will achieve better results with more speedy future drive units. I think, Windows Vista will really deserve RAID configurations to run marginally between 2006 to 2010 period. I like to see the achievement of HDD units, as well as new software. Hope you all a happy new year with Windows Vista soon....