Ever wanted to see who was hogging all your hard drive space? We could have used this a few days ago when our hard drive was nearly full and we needed to see what to get rid of first. Grand Perspective is free software for MacOSX that visualizes the storage on your computer. You select a folder or hard drive for it to scan, and it creates a visualization of your files. The bigger the file, the bigger the square, and you can easily spot what's taking up your valuable storage space. Get it here.