Newbie very confused

Hi everyone, I'm very new to machine embroidery and a bit frustrated. I just got the Brother Innovis 1000 machine. The dealer wanted me to buy the Magic Box elite with extras for $300.00, but I wasn't sure about it. I've done some research which made it worse. I would like to be able to download patterns from the internet and also create my own designs and use them on the machine. This machine has a slot built in for the card. I've seen the PE design ver 7? I don't know what I need. Then there are cards or cd's, but I need software for the cd's right? Any help you can give me would be greatly appreciated. Thank you very much, Gilda :confused: