I have to agree with Sparrowhawk. If your primary motivation is to have access to company "stuff," then get yourself a PC Netbook. They can be had very inexpensively, and even the most basic models should have the horsepower to run distance learning, CATCREW, WinBid, Wings, etc.
If you want to do more, then you may need something more than a basic model.
You can do all of those on a MacBook, too, but with a bit of extra effort and money involved. FLICAnet doesn't support Mac yet (as far as I know it has been "coming soon" for months/years.) If you love WinBid, that is also not supported by Mac. Therefore, if you get a MacBook, plan on purchasing software that will run PC programs, e.g. Parallels for Mac (about $80.) There are others out there that do the same thing. But, that's not where the fun ends.
Once you install Parallels on your Mac, you can theoretically run PC programs....BUT....you also have to buy the Windows operating system to make those work in Parallels. That's another $115 or so for Windows 7 OEM. (OEM just means you get the software with no support from Microsoft.) If you want Microsoft support, then you have to purchase a more expensive full version.
Once you have all of that on your Mac, then you can run a PC as a "window" of your Mac. Again, you only need these add-ons (Parallels and Windows 7) for a Mac if you must have FLICAnet (i.e. CATCREW access) and WinBid, or any other PC-only software.
There may be other work-arounds for Macs, but this seems to be the most popular one used by crew members.
Basically, you're looking at a basic PC Netbook for under $500, or a MacBook Pro outfitted to run company "favorites" at about $1300. But for things other than the company stuff, the MacBook Pro blows the PC Netbook right out of the water.