Accessing Windows Shares from Ubuntu

[Kent Frazier]

Hello all.

I am having an issue with getting my Ubuntu box to access the shares
of the Windows computers on my home network.  The problem is that it
wants a username and password, but the Windows boxes have none
defined.  I know this is not the best idea security wise, but we are
behind a fairly robust hardware firewall, and we have been pretty safe
so far.  I need to know how I can access these shares without
providing a username and password.

I tried just clicking through, and just providing a username but now
password, but these resulted in authentication errors.  I am sure this
is probably really simple, but I have been reading guides and manuals
for the last two hours and I have not yet found what I am looking for.
 Can someone out there help me out?

Kent