You can get refurb desktops with 2GB DDR2, C2D processors, 80GB HDD and gigabit ethernet with windows 7 pro for <$300 now including a monitor. Cat6 or even Cat5E is pretty cheap.
We have a steel building that hates wifi signals and degrades the signal to the point that AC is painful...does it work? Yes - could you see 20-25+ patients a day without pulling your hair out... No!
