I've been a PC/Unix/Linux user my whole life, until I hit the Iphone craze. Recently I've been really motivated to pick up a mac and start development on some App ideas i've been toying with. Problem being, I don't want to go out and blow 300-1000 dollars on a new machine. I've been eyeballing ebay with no luck, is there anyway to get a cheap mac anywhere? Desktop/laptop , I would hope at least 800mhz with Leopard? Seems like the price of macs don't decrease due to age(which kinda blows my mind). Or is there a good site that offers a very nice payment plan for me to pick up a mac mini or macbook for cheap(with monthly payment options?). I know the apple site does but that is at retail cost.