The problem with Boot Camp is that every time you switch to or from Windows, you have to close down everything you were working on and restart the computer—and reverse the process when you're done. You lose two or three minutes each way. And you can't copy and paste between Mac and Windows programs.
There is another way: an $80 utility called Parallels Workstation for Mac OS X (www.parallels.com), and its rival, VMWare Fusion (www.vmware.com). These programs let you run Windows and Mac OS Xsimultaneously; Windows hangs out in a window of its own, while the Mac is running Mac OS X (Figure 8-4). It's something like the old, dog-slow emulation software known as Microsoft VirtualPC, with one key difference:speed. You're getting about 90 percent of Boot Camp's Windows speed—not fast enough for 3-D games, but plenty fast for just about everything else.