Qeasy is a Mac OS X front-end to the QEMU CPU Emulator, which allows users to emulate various types of CPUs, such as x86, ARM, SPARC, and PowerPC. It enables users to run operating systems and programs designed for one machine on another machine. Qeasy is a great tool for automation, backup and restore, battery utilities, benchmarking, calculators, CD and DVD software, clipboard tools, dashboard widgets, device assistants, file compression, file managers, fonts, network, plugins and addons, remote computing, system optimization, virtualization, and system utilities.
Wineskin Winery creates Mac OS X ports/wrappers for Windows programs/games, with an easy-to-use GUI, integrated Wine, X11 and an installer.