Can’t afford Photoshop? The open source GIMP has much of the same functionality and is completely free.
Category: Desktop App
JR Screen Ruler will allow you to measure the size of anything on your screen in pixels. I find it very useful for tweaking web site designs.
For internet and media utilities I recommend AnalogX. Their tools are all free and very high quality.
Need to know right when you get e-mail? {{link http://www.dectsoft.com/products.php Ease-E-Check}} Sits in your system tray and checks for new e-mail every two minutes and plays a notification when it finds new mail.
Can’t get TI’s Graphlink Software to work with your computer anymore? TiLP is an open source project that replaces TI’s software.