[olug] Newbie type question

[John Moran]

I have a computer with one functional Windows install, and two
functional Ubuntu installs.  I want to copy all of the important data
from the two Ubuntu installs and delete those partitions and do one
Ubuntu intsall there with all of the important user info from both of
the current installs.

Can I just copy the home directories, or is there something else I
should copy in addition.

Thanks in advance,
John Moran