Ballooning in Caledon, going to a club, going to a hang-out spot (there were about 28 people there).

However, he doesn't stay long ... switching back and forth between clients gets tiresome eventually, but I'm sure the video card would get a stack error or overheat at some point regardless.

There are other non-SL clients than OnRez, though. I would try combinations and order of logon when you both have time. Makes a difference in memory allocation.