Adobe doesn’t care what OS / Platform you’re using, so I guess the bigger questions would be:
1. What OS are the majority of your students most comfortable with?
2. How dedicated are you to getting all your macs up to speed with the latest OS’s?
3. Have you tried Windows 8?
4. The aesthetics of a lab of macs vs a lab of pc’s, screen resolutions of the big imacs, etc, should be factored in. Recreating that same experience with PC’s is not as cost effective as you’d think.
We’re very happy with our macs. We don’t have 20 (more like 10) but regardless of which platform you choose, your systems will continuously need to be monitored, updated, and maintained. It doesn’t sound like the bells and whistles of OSX are really being utilized (that’s not a criticism) so I’d say all the pros and cons of your decision should be discussed with everyone involved.
If you’re in Seattle, maybe Microsoft can use you guys as a big case study and get you some discounts!
John Davidson | President / Creative Director | Magic Feather Inc.