This little set of tools automates a bunch of the things that previously you had to muck about in the terminal to fix. Quoting from the site:

Easily install kernels,kexts (kernel extensions), backup important files, run computermaintenance, modify OS X cosmetics, boost graphics performance by up to50%, install hardware drivers in 1 click and more with OSx86 Tools. This program has been in rigorous betatesting for months now, and me and the rest of the people have workedhard to make OSx86 Tools the best it can be. We now bring to you the final release of OSx86 Tools that will change OSx86 life forever.