Here's my opinion:
You're spending extra money on a MacBook, just to run Windows XP in VMWare?
I run WinXP on my MacBook Pro 2.8Ghz, via Parallels - it loads/starts fast, and runs relatively smoothly, although there can be a delay between clicking a folder icon in explorer, and seeing the window open. The windows applications run fine though.
I hate the MacBook Pro keyboard for typing. The keys are shallow, and skiddy, making it easy to hit the wrong letter when typing fast, and whilst APPLE+LEFT and APPLE+RIGHT equate to HOME and END keys in many applications, it doesn't work in all applications. Pressing shortcuts for Page Up and Page Down, often take you to the very end of a document, or very beginning, instead of just scrolling one whole screen, and you have to hold in the Function Key to turn backspace into delete - there is no seperate delete key. =/ A lot of these seperate hotkey combinations then don't work when running Windows XP in Parallels, so you have to seek out keyboard remapping software, to get HOME, END, PGDN, PGUP functions on your Windows running Mac.
You seem to already really want a Mac - well - if that's the case, you should know why you want one, and thus already have some reasons to give your Dad. If you can't think of a reason to actually have one, and you just want one because you want one, =P, that strikes me as a bit shallow.
In my experience, Macs are good for:
Video Editing
Desktop Publishing
Photography work
Graphic Design
Music Composition
Web Browsing
Video on Demand
PCs are good for:
Typing
Web Development
3D Rendering
Videogames
Macs overlook some simple things you take for granted on PC. My latest frustration has been no way to refresh a Finder window that's connected to a PC folder via samba, over a network. Ergo, if a new file is saved to the shared PC folder, I can't see it on my Mac without disconnecting and reconnecting.
Macs do give you the best of both worlds, however, with their ability to run Windows.
And so far I've had none of the registry/spyware/system-slowing-down-after-the-first-few-months problems all my cheap PC laptop owning friends seem to have.
However, if you really wanna benefit from getting a Mac, you ought to learn to make the most of the Mac OS, rather than seeking to just use it as an expensive windows machine.
Mac OSX does lack some essential details, that Windows has had in place for sometime, but Mac OSX does what it does faster, and better, than Windows, so most people don't miss the details OSX skimps out on.
That said, both operating systems are useless without useful software.
I dare say, as a student, you'll probably find a lot of pirate software floating about, and may be able to get what you need gratius. If not, then it's gonna be an extra expense, which could make the premium for a Mac even more questionable....
What I've tended to do in the past, is pop onto ebay, and look for second hand Macs, which are usually already loaded with all the software you need, all ready to go, and can be considerably cheaper too. The only thing to watch out for, is that PowerPC Macs will not run Windows, only the Intel Macs - so if you go for a second hand one, and want to run windows on it, make sure it's one with an Intel processor.
The biggest reason to give your Dad, is that it's likely to last longer and perform better than a cheap PC laptop.