If you still have a Windows program or two that you absolutely need to use, a virtualization product such as Parallels or VMWare’s Fusion may be just the ticket.
VMware Fusion Mac
From the proven leader in desktop virtualization comes VMware Fusionâ„¢, the most seamless way to run Windows applications on your Mac. VMware Fusion combines a clean and intuitive interface that Mac users expect with a virtualization platform trusted by millions of users today. VMware Fusion allows you to launch your Windows applications from the Dock and switch between Windows and Mac applications using ExposÃ©. With the industry’s most advanced virtualization technology VMware Fusion is ready for the future and lets you leverage all the hardware available on your Mac to simultaneously run 32 and 64 bit operating systems use two processors at the same time run select 3D games and utilize USB 2.0 devices.