I am a PC user, but my wife is a MAC user so I have to provide suport to her on our home network, which is connected to Telewest Blueyonder Broadband, and I have had to call them once about settings on the MAC when we were dialup and they struggled, but did find someone, but to be honest since going broadband via network card, if you can support a pc network then the MAC is no problem especially now with OSX, which is unix based/inspired. The old days of MACs being so different are almost gone as Microsoft have used all the good bits from Apple in windows. I have had trouble getting wireless networking on the MAC, but due to being scarce hardware rather than software problems. Also being a MAC it dosnt suffer the BSOD that pcs do anyway.
Gary