Yep, those are very nice.
But surely there is an inexpensive software solution to do network storage on an Ubuntu box. Once I get "moved in" (install Ubuntu and find backup software and virus protection and spyware protection, etc) then I'll have to do some searching. If there turns out to some space in the old box for a few more drives, I'll be all set!
But based on non-std Dell parts, looks like I may have no choice but to give the wife the Dell and put Linux and extra drives on the Compaq.