yeh that's one of the bad things- no inter campus transport
yes you may have some classes the same day but it's unlikely they'll be at the same time or close.. seems like most people can get around that coz you get a fairly wide choice for tute times and stuff..
if they do class though when it gets time to do tute reg, you just gotta contact your unit coordinator n let em know you can't get into a time that you can get too and they usually let you go to another class even if its technically already full
i wouldn't worry bout all that stuff though till it comes time to do tute reg which is late february