Let's say that you did have some disposable income at some point in time, but it happened to turn into a spankin' new iPhone 3G right before you realized Junior desperately needed a new computer for the school year. Don't worry, Gizmodo's here to help make up for your bad parenting without throwing you deeper into debt: Starting Sunday at 8am, Wal-Mart will be selling a 15.4-inch Toshiba Satellite notebook with an Intel Celeron processor for $398. The Toshiba will be decked out with 2GB RAM, a 120GB hard drive, CD-RW and Windows Vista Premium. [Check Out Blog]