First Mac and going for Windows, read through the pdf and Apple tech articles; there is Mac 101 and other areas, and do get a copy from library or bookstore of "Mac OS X The Missing Manual Snow Leopard Edition" - great for new, old, long time users or not.
has link to full Boot Camp Guide pdf which is almost 30 pages I think.
Apple hides a lot of things that are more accessible with Windows 7 to see what you have though. The drivers could be easier and better, and the firmware is a black closed sealed proprietary box, something that may not seem like an issue with Mac OS but can be with Windows or if you thought you had a semblance of control, and while firmware updates are rare, they can't be rolled back (Apple doesn't provide an easy mechanism to rollback updates and drivers or to uninstall a program either). So those are some of the reasons. Things that Vista even has had for years may come to Mac OS like even simply dragging the side, any side, of a window, to resize, stretch; send a windows to another monitor; a more functional "Finder" where you can do... anything you want.
But you may not have the malware threat for now is perhaps the only upside I find.