Hmmm. All the labs at my college had security of some sort. Sounds like you may need that as well. And if you are willing to pay god damn $9000 for a stupid goddamn mac, then you are damn near asking for large losses. And somebody needs to learn how to use capital letters in emails. It sucks that it happened, but if you seriously have 17 pos $9000 macs, maybe you need to keep a better eye on them. And most schools I know of usually get computers for free, or damn near free. See, if you learn on a mac, and think, "wow, macs are cool", the idea is that one day you will be stupid enough to shell out $9000 for one. So I doubt it will cost you school $180,000 for replacement. But if it does, it was a costly lesson for security. And did you think about insurance covering it? If I had $180,000 in equipment, the least I would do is have it insured, much less have an armed guard standing by at all times.
And who the hell pays $9000 for a computer? Does is do oral sex on you while you use it?