To answer you guys in no particular order....
I have 3 PC's connected to the Samsung box through a router, so no problem there, we are on 3 meg also.
I am not too fussed about the download speed although it is fast as it is
I have never had an issue with downloading, and rarely with surfing, P2P is also acceptable.
My main consideration is that we can have the 3 of us all playing Half-Life mods online at any one time and it gets a bit crowded up the pipe.
I have posted in other threads about the lag etc and I was just trying to find a way round it.
A 1 meg SACM would do me fine. Until I get to the bottom of the horrendous lag on occasion I will explore all the alternatives.
Cheers
Paul