Thinking of Selling V Motion... I need help with Ebay...very scary site!

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I am thinking of selling my daughter's V Motion on Ebay, it's only been used 3 times so it's basically brand new, and it comes with 2 games and 2 controllers. How much would you charge? Also I am wondering how you calculate shipping costs? Do you have to print your own labels? and How much does ebay cost? That site scares me unless I am purchasing. I've read everything but I think it's for people who know what they are doing and I definitely don't!