AT&T platform?

[ddulmage at cdp.UUCP]

Hello, as a complete unix noveice, I need some guidance..
I have been offered a AT&T unix workstation for $400. It has a 20 meg
drive, floppy, com ports, all software and manuals. I believe the
system is version 3.something. Would this be a useful system to start on?
Would it end up th proverbial boat anchor? Remember, I know squat about
Unix and can't afford much dough for sftware etc. Any help is appreciated.
Thanks!

Doug Dulmage