Networking two printers is fairly easy. You have a couple options. The first, and easiest is to go to any
computer store and buy a print server, less than $50. It keeps the printer online and you can attach 2 PC's to it, they have wireless ones as well. The second is you simply share the printer. Setup both PC's to be on the same workgroup and then you can detect the pc through My Network Places, this only works for both pc's when the one that is attached is on.
You can go to microsoft.com and search for how to share a printer and they will have directions.