As everyone here probably knows mac doesn't come with any graphics programs installed on it so entering contesting and making custom content is REALLY difficult. I just found this program on mac softipedia which is free and is a bit like photoshop. Here's the link
http://mac.softpedia.com/get/Graphics/ChocoFlop.shtml. Just wanted to share that with you guys cause i was really excitied when i found it:-P