that was expected....
I guess there are a few questions to ask first. Does she already use Mac? Does she need mobility? Is she JUST doing word processing and using the internet?
That being said, regardless of what anti-mac sentiment may follow, I think it's a great system for college, so long as she doesn't need anything more powerful.
First, let's be honest here- college networks suck and any student on a network is bound to get some kind of virus/garbage spyware installed very quickly. In that regard, Mac's are a fantastic choice for a campus computer.
If she doesn't need power, like you said, a mini is great- but I would recommend going with at least 512 megs of ram.
If she doesn't need portability, its another great choice- does't take up much room and it's damn sexy. If I were to steal a computer though, I'd probably want to steal a mini over a desktop though. If she does need portability, you could go iBook or Powerbook, but if money is an issue, you can find a decent Windows laptop for under $800.
Hope that helps.