Hi there I'm looking to get my first mac. I have always ran Windows machines and am looking something that won't break the bank but will be able to run current software. What are the lowest system specs I can get away with if I choose to buy a used system. Or should I just go for the 699 new mini. I'm assuming I should have no problem getting it to connect to my current wireless setup but what about file sharing, I have a couple of TB on my windows machine and would like to share most of my media with the mac, is that difficult or should I expect a headache getting it to work. Any suggestions would be appreciated. Thanks!