i need to sell my iMac that i bought last april/may. i am planning on traveling overseas this year and need a laptop. i think that now is a good time to sell - before macworld. so i am thinking about starting an auction on ebay. the other option is to try craigslist. my gut says to do ebay first as there is another very similar machine already on craigslist in my area. i know i can't do both at once. what should i try first?