Apple today announced that it will open its seventh retail store in Texas. Opening this Saturday, March 4, the new Dallas-based Apple Store NorthPark Center is located at 8687 North Central Expressway. The store opens at 10 a.m. local time. The company is holding its traditional t-shirt giveaway along with a grand opening sweepstakes for a Digital Lifestyle Collection, which is valued at $2229 and includes a 17-inch flat-panel Intel Core Duo iMac, an iPod nano, a Canon PowerShot SD450 digital camera, a Sony Handycam CCD-TRV138, and an HP Deskjet 5440 printer. The store is showcasing its School Nights, which feature student-directed presentations through April 25th.