There’s only 2 people in my group project (including myself) but I can tell you SVN is a life saver it took us no more than 20 minutes before we realised it was going to be a complete bitch for us both to work at the same time. And Information Services kindly put Jon on the same VLAN as me so we could all access my SVN server.
Damian in IS is a bit of a legend, he even moved some VLANs round so I could play Minecraft on the campus network 😀