Just pulled the trigger on a 27" 512gb iMac ... will soon buy Crucial RAM to bump it to 2032gb. Happy day! I was looking at Airport Time Capsule and am quite confused. I know it has a built-in hdd and is a router. My questions are: 1) can I stream music from it to my iPhone/iPad without using the internet data? My in-home internet isn't blazing and I fear wifi backups would take forever. 2) If I plug it into my iMac (which will be in another room than the modem and router) can I just bridge it and have it backup much faster yet still share files? If it can't stream I honestly see no reason to buy one as I can get a 2tb USB 3 drive cheaper ... I was going to search for the answers but, well, damn hackers.