If you're doing a USB install, it's generally smooth sailing. If you're installing a NIC, make sure you do a system check with the sub and back it up (ERU) if you have any doubts at all. It takes a bit of extra time, but it will save you buying someone a new computer on that one in a hundred. As soon as you touch it, you bought it (where we work, anyways). Get the sub to turn it on - this has saved my bacon several times. Some people will book an install on a broken computer, and when it does not turn on, blame the installer!
Macs are actually the easiest to install - there's just a few tricks for troubleshooting, far less than PCs. Great once you're used to them.
If you have any more questions, feel free to email me (I'm talking to cableupgrade).
Cheers!
