You don't need to use NFS to network both ways. Use Samba for both the server on your linux box and the client to your Windows machines. To mount Windows shares on your Linux box you would use "smbmount". This works much like any other NFS or Disk mount. e.g.:
smbmount //winserver/share /mymnt -o username=winusername,workgroup=wrkgrpordomain
It will then prompt you for your Windows password and if successful mount the windows share on /mymnt. You can also use the "password" tag in the smbmount options if you don't want it to prompt for a password.
Another nice graphical utility is "xsmbrowser". See:
http://www.public.iastate.edu/~chadspen/Also, if you use KDE you can browse your windows shares and get ReadOnly access to them using Konqueror. Either press "ALT+F2" and type "smb://windowsservername" which will bring up a list of shares just like if you would have clicked Start->Run and typed in "\\windowsservername" on a Windows client, or type that smb: URL into your Konqueror Location: box. You need to make sure you have Samba configured properly and in KDE Control Center have Windows Networking configured properly.
[ April 12, 2002: Message edited by: VoidMain ]