Wireless Setup for moble operation

I'm traveling the country this year doing digital photography and I'd
like to setup my system for wireless operation in my RV. I have a
desktop I built a year ago with a Gigabyte GA-8KNKP MB and 4 HD's
totaling 615GB in addition I have a Sony Vaio PCG-V505EX laptop and a
Canon S900 printer.


What I'd like is a wireless system that I could connect the printer to
the AP and the desktop either wireless or wired with the laptop being
wireless. I'd also like to be able to connect up to a WiFi hotspot
with either the desktop or the laptop.


The problem, as I see it, is that the Internet access part of most
AP's assumes connection to cable or DSL and NOT WiFi -- so what's the
best solution in this case.


Any product pointers?


Thanks,


Brian