I am almost 100% certain I'll get torn to shreds for this, but......
Boot Camp is NOT the same as a Windows PC. Why? I don't have an answer, really. All I know is that Windows 7 in Boot Camp tends to be "finicky" (for lack of a better word), where as on my two Dells and my HP desktop it works great. I've noticed strange issues PARTICULARLY with networking, which is exactly what the OP is needing Windows for.
Should BC be exactly the same? YES.
(In my personal experience as a tech guy) Is it? NO.
The only conclusion I can come to is that it must be something with either the EFI (instead of a traditional PC BIOS) or, more likely, something quirky with one or more of Apple's drivers.
Flame me if you want to, but if I were the OP and I was DEPENDING on Windows to get my degree, I, too, would buy a
Windows machine.
@ the OP: I tend to go for either HP or Dell (Latitudes ONLY). But I really like the Dell XPS 14z, too, if there's enough horsepower there for you.
EDIT: wpotere, which MBP did you use? I've tended to notice that the Core 2 models tended to work better with Boot Camp using XP than the newer Core i-series using 7... again, just my experience.