The SP762-TS is a power supply that is ready for a maximum power of 760 Watts. That should certainly be enough for all imaginable setups.
We used a RAID 0 array in order to avoid storage subsystem bottlenecks.
Running two Maxtor 80 GB SATA drives in a RAID 0 setup, we easily hit sequential transfer rates of 100 MB/s. We used a Promise FastTrak S150 TX2 Plus that is able to run at 66 MHz PCI clock.
The registered DDR2 memory by Infineon is ready for ECC, too. We did not enable this feature for the benchmarks.
We equipped all boards with 2 GB of RAM (4 x 512 MB).