Done it myself, it's not too bad. You can only set the bit rate to a
max of 57,600 baud, which is the reason why there is a bit of lag
every so-often. VERY strange why multiplayer that is coded
specifically for LANs is only able to connect at modem speed...I've
never heard of one yet at that speed.
You can't get rid of the computer cars (didn't try too hard tho) but
it runs pretty well. You can't chat whilst racing tho (unless I'm
missing something - Anyone?) which is a pain.
Have fun!
Rafe Mc