I'm getting ready to start summer teaching again, which is going to put me in a position of drawing a lot of structures. I'm teaching Organic 1 lab as well as "Nursing" chemistry(general, organic, biochemistry) and am also scheduled to teach Organic II lab for the next couple of semesters. I'm getting tired of juggling files between my Quad and my Mac Pro so that I can use the old versions of ChemDraw that I've dug up, and instead and going to try and get the department to buy me a more current version. What I'm wondering is what real-world difference I'll see between ChemDraw Professional and ChemDraw Prime, and specifically if I need to make the argument for the $1K price difference between the two. For organic labs, having access to the TLC plate drawing tool(apparently included in Prime) as well as the NMR predictor(which I know is in the version I'm using now, but not sure if I have to go up to Pro on the current) would both be very useful. I'm trying to be budget conscious on this, and although I'm not spending my own money I don't want to spend to much money. At the same time, if there is a good reason to buy the better version, I need to be able to make an argument for it. Do any regular users of these programs have any thoughts?