Yeah, i'd use a Coaxial Cable too (not a TV one, just my slang for a Cross Over) - or one of these nice USB Connecters you get in the PC Stores if its cheaper, wouldn't be noticably slower just for Broadband - maybe if you were transfering 20 or 30 GB from Laptop to PC!
I don't know if a Serial Connection would be to slow to get Broadband speed - I must admit I have never thought about it, I think it would.
A Knight is sworn to Honour. His heart knows only Virtue. His blade defends the helpless. His might upholds the Weak. His word speaks only truth. His wrath undoes the Wicked.