Having some fun with iometer recently.  I had the opportunity to compare benchmarks on SAS vs. SATA vs. SATA SSD.  Also been working on a OpenSolaris 10 alternative to a NetApp filer.  Benchmarks for that setup are here.  Test specs, hardware specs, and full documentation should be contained in each link.  If you find something missing or want see more, drop me a comment in the space below.