PC-*NIX <-> SUN advice wanted

[Torsten Lif]

We have a network with a number of SUNs (all flavors and sizes) and PCs
(XT, AT, 386; all run MS-DOS so far). I'm thinking of converting some
of the PCs to run some *NIX dialect that would (preferably) allow them
to be used as X-terminals in conjunction with the SUNs. Is this a good
idea? Has anybody got advice to share on the subject? Which PC-*NIX
dialects work best with SUNs? Is a 286 enough to run X or do you need a
386? How about NFS connectivity?

All info greatly appreciated.

 Torsten Lif
 Ericsson Telecom AB, EO/ETX/TX/ZGH
 S-126 25  STOCKHOLM, SWEDEN
 Tel: +46 8 719 48 81