I have seen so many posts saying multiplayer online and Lan didnt work at all that I had to try for myself. I loaded up a 2nd computer on my wireless Lan network and multiplayer Lan is excellent. Both computers found each other and load times better than average. Gameplay during the multiplayer sessions so far are lag free.
System Specs are:
Computer 1: Core 2,@1.8, 2Megs of Ram, Nvidia 8600GTS, Windows Vista
Computer 2: Pentium 4, 2.4GHZ 1Meg Ram, Nvidia 7600GS AGP, 56K Max speed hook up on wireless network, Windows XP
With my 2nd computer connecting at only 56k max and playing lag free, I dont see why a broadband game online will not work.
If anyone would like to hook up just drop me an email.