I've just upgraded 4 machines at work, to the HP thin client, for improved connectivity, and also for space issues. The PC's themselves are a doddle to fix up, taking possibly a max of 15-20mins from start to finish. The thin client has a nice built in speaker and an abundance of USB ports, which should satisfy most users (6 ports in all, 2 front, 4 back) Bootup speed on these machines is good too, from powering on, i would estimate that it takes 20 seconds to reach the network logon screen on our machines, which is a lot faster than our old machines, which would usually take between 1 1/2 - 2 1/2 mins, then go through a dual login (login to the pc itself, then login to the remote desktop connection) whereas the thin client is set to autoload the login for the remote desktop connection.
The downside to these machines, which we did not realise at the time, is that they are incompatible with certain printers/hardware devices, so my only advice would be check your equipment is compatible first.
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