We have Comcast highspeed cable with a decent sized network in the house, both wired and wireless. I was testing its speed tonight with Speedtest.net.
Wireless: Via an 802.11g AirportExtreme base station to a MacBook Pro:
Wired: through the base station and a router to a MacPro G5 (quad):
Not bad, imho, but I am going to guess that others of you will have faster speeds, some much faster. (And Jim West will be below 56k on his dial up modem. 🙁 )