dBase Work-a-likes for Sun 4

[wayne at tecnet1.jcte.jcs.mil]

We have several users who would like to move their relatively extensive
collections of dBase III/whatever files and programs to a SparcServer 470.
The goal is for the data and programs to be ported with little or no
modification.  The databases themselves are relatively static and are only
updated by one user.  Multi-user read access is essential however.

Can anyone relate experiences with FoxBase III+, dbMan V, etc.  in a Sun 4
environment?  Thanks in advance.