I want to purchase a package for my wife and me; she has an I-Pad, but often uses a PC at home and at work. I typically am a PC guy. What is the best way for both of us to be able to use the software from our computers or devices (not at the same time, of course). Do we have to purchase two packages? Is there a reasonable way to set up a network using our wireless router? Does the fact that she likes to use her I-Pad cause a problem? Is there a web-based version that we can "lease" similar to other types of software such as financial applications, etc? Help!