I just put together a server for the office that is running dual xeons with 4 74GB raptors in RAID5 and an 8x DVD burner. The case and motherboard are Supermicro, and I think the PS is 400watts. I am trying to get a UPS that will match well with this system. Any suggestions? Reasonably priced as well. Currently each p4 system has an APC BACK-UPS 650, which look like they run under $200 on pricewatch. So I assume $300 price range is good.