I'm still waiting to see if a friend finally gets a WD 200gb SATA drive partitioned and formatted on a board with an ide controller. When first tried there was no success in using the drive there as a stand alone primary. The SATA II drive being backward compatible is the same general comparison to whether an ATA133 drive is backward capable to an ATA100 or 66 board. Western Digital is certainly a preference for drives here both ide and SATA. Maxtor used to be total %**@ and still has problems at times when the Windows installer fails to detect the drive.
Maxtor has had to come out with some speicific drivers to correct this. Seagate on the other hand doesn't get the complaints it did at one time from certain techs I've known through the years. I hope you don't run into the same problem with that board where you have to grab a psu with a 24/4pin not 20/4pin plug connector. The SLI ready supplies will have the 24pin type. Otherwise you won't get the new board running. For an alternative that will work take a look at the TP II 480w model at
Antec TRUEPOWERII TPII-480 480W Power Supply - Retail at Newegg.com