Bridging a virtual machine connection to OS X

Hello again macrumors!*

I just got my first Mac, a retina MacBook Pro and a have a few odd questions that I need some help with. I go to a military academy and the network there is not Mac friendly at all. I have an issued Fujitsu T730 laptop that has windows 7 and all of the engineering software and programs I use for classes. Just for some background for my questions, the way the network works is that to access school websites, email and military sites I have to use a smart card with a chip in it that us read with an express card reader built into my Fujitsu laptop that reads the certificates off my card and I authenticate them with a pin number. In our academic building, to access the wireless network I have to have my smart card inserted and then I am asked for my pin to authenticate and connect to the network.*

I hope to get windows and my programs installed on my MacBook pro via bootcamp so I can ditch the Fujitsu laptop and it can be done through my computer help desk, they will do everything for me. So my questions pertain to the network connection so I can run Mac and windows side by side at the same time via parallels or VMWare Fusion

1. How much should I partition for bootcamp? I will need to install a lot of security, and programs such as Matlab, Mathematica, and MathCAD on windows. I have the 256GB RMBP.*
2. Should I get Parallels or Fusion. Does one of them allow more options for networking.*

3. This is the biggest issue for me of all. If I'm running my bootcamp install of windows 7 under a virtual machine inside OS X I have been told I can't use the virtual machine to connect to the school network. But if I am able to connect in my virtual machine to the network, is there any way to share the internet connection with my non-virtualized OS X? Like bridge the connection from my windows 7 virtual machine to my OS X.*

Thanks for any help!