To cut it short, the IWILL P4R533-N is a very high-quality board with performance to match, but priced accordingly. At around $300-350 or $160-180 USD, the board isn't exactly on the cheap side considering there is no support for the latest technologies like ATA133, USB 2.0, RAID and IEEE1394. For the power user, these features aren't going to make much of a difference anyway, since they are usually combined with feature-rich DDR platforms that tend to sacrifice performance overall. RDRAM is still pricey around the $150-170 mark for a single 128MB stick of PC1066, which will more than likely be the deciding factor when it comes to choosing a board such as this, but if absolute performance is a must, then RDRAM has its advantages - as shown here today.