How to Launch Application on System Start in Mac OS X
Mac users may find it helpful to automatically launch an application upon system start of Mac OS X. Basically this means as soon as the Mac is done booting, the approved auto-launch apps will open themselves once the user has logged into the Mac and the Mac OS desktop has displayed. You can add as many apps as you want to the automatic launch list, but it’s best to use this feature prudently so you don’t needlessly slow down the boot time of the computer.
We will show you how to launch applications on system start of MacOS X, and also how to remove Mac apps from the automatic launch list.

Does your Mac not support Front Row? Have you been drooling green in envy as your friends flip through their media collections? Drool no more, there is a solution to get Front Row running on your Mac! Front Row Enabler is a simple app that patches Mac OS X and allows the installation of Front Row on technically unsupported Macs.
Time to visit the Apple menu and fire up Software Update. Apple has released a new Security Update, recommended for all Mac users. Owners of the eMac, iBook, iMac, PowerBook G3, PowerBook G4, and Power Mac G4 affected by the
Handbrake is a no frills easy to use open source video conversion utility, which used to be known as Instant HandBrake. HandBrake makes taking any DVD you own and placing it on your Mac/iPod/iPhone/iPad easier and more instant than ever before. And of course, I should mention that Handbrake can also convert your DVD Videos to a format Sony’s PSP can understand. When converting DVD Videos to your iPod, you can choose from the standard MPEG-4 format (perfect for pocket viewing), or if you plan on hooking your iPod up to a television, H.264 encoded video is also supported.
If you own a Mac laptop, you’ll want this great app. CoconutBattery provides the usual current battery charge information, but that’s not what makes it cool. 

Pacifist is one of those really useful apps you wish you had that you didn’t know existed. Pacifist is a shareware application that opens Mac OS X .pkg package files, .dmg disk images, and .tar, .tgz, and .tar.gz file archives and allows you to extract individual files and folders out of them. This is useful, for instance, if an application which is installed by the operating system becomes damaged and needs to be reinstalled without the hassle of reinstalling all of Mac OS X.