TWIP Photo has been offering some nice prizes lately. The winner of their new photo contest, 'Doors', will receive an NFR (Not for Resale) copy of Apple's Aperture 2.1 as well as a copy of Adobe Lightroom and an Aperture 2.0 book. The total value of prizes is more than $500. This is a great opportunity to pick up some pricy RAW conversion applications for free. For contest details, go to TWIP Photo and scroll down to the May 9th entry "TWIP’s Photo Assignment Competition #7 - Doors".