HELP bootcamp after parallels??

I have a Macbook Pro 10.6.6 OS. I have the new Parallels running XP pro. I am in drafting classes in college, and i need to run the autodesk revit progam. It requires 3gb of ram. I don't think it will run good in parallels. I haven't tried though or even downloaded it. I have a 128gb SSD hard drive. Parallels has taken some of the room up on it, i have about 50gb left. Is there a way I can get bootcamp on here without having 2 installations of windows on my computer and taking up a lot of space? Or have a good idea of doing this? I just think I need to do this to get the full 4gb of ram to where i can use it for the revit program. Any suggestions would be helpful.