Is she looking for a laptop or a desktop system?
That's the main thing you need to know.
The best thing to do is go on the
www.apple.com web site and look at the choices.
There are 2 choices of desktop; the imac includes everything you need to get started. The mac mini has just the computer and then you pick out a keyboard and monitor (or use ones that you have).
The current laptops are the MacBook and the MacBook Pro. Both of them are new (brand new), so I haven't seen them, but they look very nice. We have the older versions in our house - older DD and I have PowerBooks (the MacBook Pro is the new replacement for that). We also have an iBook in our house (the MacBook replaces the iBook).
If she is going into something like graphic design, art, etc, she might want the MacBook Pro because it has a 15 or 17 inch screen (MacBooks have a 13 inch) and is faster than the MacBook. It also has a larger hard drive.
Macs are very nice computers and I think are worth the money. I have to use a Windows laptop for work (I've had an IBM Thinkpad, a Compac and my current one is an HP). They are OK, but the keyboards have never felt comfortable for me on any of them. The Mac keyboards do and are designed to have a place to rest your hands (so they are more ergonomic).
Also, the batteries work longer on one charge on the Mac (my 18 month old PC from work will only hold a charge for an hour - we have a 3 year old iBook that still goes for almost 4 hours). I am also glad to have an IT person at work because keeping a PC going virus free can be a job. We never have to do anything with any of our Macs. Having Macs since 1984, we have never had a single virus. My work PC has had several and I am working in a large company with a good IT department.
If you have an Apple store nearby, she should go and try one out and talk to the people there. CompUSA also sells Macs, but may not have anyone that knows a lot about them. If she goes to an Apple store or the Apple website, she can get a student discount.
PS - I have not had to learn keyboard commands with the Mac; I know very few for the Mac because all the commands are in the pulldown menus at the top of the screen and that works best for me - but you do have the option of learning them if you want to. They tend to be more consistent across programs than the keyboard commands in Windows programs.