i need to add storage space to my home/soho network. initialy used a 320gb mirored raid. outgrew it. problems resulted from to many people on the network read/writing files to it as it was also used. have been looking to add a NAS but cheap and secure don't go together? am i better of just making a bigger raid and not using the computer it is on or buy one of the Buffallo Teraservers or an Infrant ReadyNAS (both avainable from newegg). anyone out there with realworld experience with these?