The uni i was at (in the UK) did have Macs in the labs too, but they were more for video editing - the actual 3d lab was PC based (with a few old O2's aswell ).

Since my post has stirred up an :argue: icon from you let me elaborate a little-
The reason i bought it up was from (indirect) experience - there were a few mac guys on our course and they had no end of trouble getting work transferred across when they got back to halls in the evenings as we were doing some work in Live (which as I'm sure you know isnt available (yet) on OSX). This caused a whole lot of hassle for both them and the staff..
Aanyway - it'll be worthwhile checking before hand if the course consists of any Maya Unlimited specific work just to be safe.