If your a mac user that occationally needs to use the dark-side of the force (Windows) checkout the freebe by Sun called VitualBox. The emulation is pretty good if your like me you really only start up Win-DOHs to test web development on IE and the occational network tool.
On a completely non-edutech note, I urge everyone to go checkout the game Zombies Vs Plants by PopCap games. It is addictive on the level of minesweeper or bejeweled.