teril1 and Jumes, welcome to Laptop GPS World.
Garmin Mobile PC, DeLorme Street Atlas, DeLorme Topo, they are all excellent programs in their category. There are several other
netbook GPS software programs that can be used on Asprire One, or other mini-laptops. If you are already decided on Garmin Mobile PC, or any other software, then yes, I'd say that the simplest thing is to just buy a bundle that includes even a laptop GPS receiver. That way you don't have to worry about compatibility issues.