Any suggestions on drives for a drobo mini. I'm thinking along the lines of these drives Seagate Momentus Thin ST500LT012 500GB 5400 RPM Western Digital Scorpio Black wd5000bpkt 500GB 7200 RPM 16MB Cache SATA Seagate Momentus 7200.4 ST9500423AS 500GB 7200 RPM 16MB Cache SATA I'm planning on using the drobo with the thunderbolt port, so that being the case would I be better suited with a 7200rpm drive over the 5400rpm? I've been out of the loop on getting drives so long, does it matter which maker I go with WD or seagate? Price isn't really a factor as they're all pretty close in price. ---------- Additional question, Is there any value or wisdom in buying 2 seagates drives and 2 WD drives (7200rpm flavors) and having a mixed set up or having all the drives in the drobo from a single maker?