If I'm not mistake Bacula uses the Windows backup tool to backup
Windows computers, so it will do everything you need.

If you don't want to go about setting up Bacula, no problem. Just
setup the Windows backup tool to dump it's backup information to your
samba share.

-- 
Andrew S. Zbikowski | http://andy.zibnet.us
 A password is like your underwear; Change it
 frequently, don't share it with others, and
     don't ask to borrow someone else's.