Okay, so the Unison file sync is taking longer than I expected, but I realized that I could network the printer, so as to have any computer in the house print through the wireless. There were a few hiccups, but it was mostly painless. Here's what I had to do.
Part I - Installing Linux
Part II - Setting up SSH
Part III - Setting up SVN
Part IV - Networked Printing
First you'll want to install the samba print driver in Ubuntu, instead of using the command line to install this time, I went to the software center, searched for samba, and installed from there. I followed the steps from this Ubuntu community link, but had to make some modifications as I went. It was fairly fast, and I had to modify most every step, so here goes. First off all the setup is Ubuntu server with attached printer (HP Officejet 5500), two Windows 7 boxes, and a Win XP laptop that needed to print to the printer.
I went to http://localhost:631 from a browser on the Ubuntu box, but this didn't have much information on sharing the printer beyond allowing me to confirm the name. Next up was to open the samba configuration file "sudo vi /etc/samba/smb.conf". Under [printers] (there is something like #printers above it - don't be fooled, keep scrolling), change / add the lines to;
browsable = yes
guest ok = yes
use client driver = yes
The last one is for the XP machine. Now restart samba with;
sudo restart smbd
sudo restart nmbd
For the the Windows client printers, add the network printer by going to; Start -> Printers and Faxes -> Add a printer -> Network printer -> Now enter the local IP address of the machine and then the exact printer name for instance "\\192.168.1.21\officejet-5500-series". It will then give you a warning about installing drivers from the network, but then it will fail to install the driver. Select one close to you model (if you can find the exact model go for it).
At this point, the Windows 7 machines were printing fine. However the Windows XP box was not. I had to go back into printers and faxes, then right click on the Network Printer -> Properties -> Advanced. If you were not able to select the exact driver when you set up the printer (as I was) this may help. Previously I had already used the printer from the XP machine, and it had correctly installed the driver then. I was able to pull down the menu next to driver and find the correct one. After clicking Apply, Windows prompted me to install the driver again, but (again) they didn't have it, so I canceled out of that dialog, and hit OK to the printer's properties. With the correct driver associated, the printer was printing! As always questions and comments are welcome!