I just wrapped up yesterday with what will be my final TA(teaching assistant) assignment of my graduate career. This was an upper-level(500 level) course that met once a week. I had six students who were the most part pretty self-sufficient. They were also a lot of fun, as all were fairly laid back unlike in lower level labs. I also had a 50:50 ratio of MacC users, including one who had a nice black Macbook. In any case, I told the students at the beginning semester that I was going to use a different Mac laptop every week we met, and that I thought I had enough to make it through the whole semester. I just finished up yesterday, and accomplished my goal(something I was quick to point out to the students). The last one I used was a 15" Macbook Pro that I got off here and was delivered-quite literally-an hour before the lab to the FedEx store down the road. I spent the time in lab(when I wasn't actively working with the students or doing other prep work) installing Mavericks. Admittedly, I did get a few reprieves through the 15-week semester. The first week was taken over as lecture time, we met in my research lab twice and I only used a laptop one of those weeks, and we lost two meeting days to snow days. Here's the full list-I used a lot of PPC Laptops, although I did stick some Intels in there out of necessity(particularly on weeks where I knew I'd need to spend a lot of time on Blackboard during the lab). 13" Macbook Pro 12" Powerbook(two different ones) 15" A1138 Powerbook 17" A1139 Powerbook 867mhz TiBook 1ghz Ti Powerbook 1.2ghz iBook G4 Pismo 500mhz 13" Black Macbook 13" White Macbook 15" pre-Unibody Macbook Pro I had a couple more "in reserve" and probably could have made with a few more meeting weeks. I have a second 1ghz TiBook, a 400mhz TiBook, and another iBook G4 that needs a hard drive. I have a big box full of 12" Powerbooks that a member on here sent me, and could have spent the time(if I'd had it) putting one of those together. You'll notice the lack of iBook G3s on the list. The reason for that is that all iBooks lack PCMCIA slots so I can't put an Airport Extreme compatible card in one to connect to the school networks. The encryption, even on the "public" networks, is advanced enough that I can't even see the school networks with a regular Airport card. I would have loved to bring a Clamshell in . That's why I was able to use the Pismo(running 10.4), however. I was even tempted one to haul in a Cube and Cinema display to set up, but thought that would be a lot of trouble and would still leave me with the Airport problem. An iMac G4 also came under consideration.