Hi All, I'm anxiously awaiting the release of the new rMBP next week(I hope) and working on my shopping list. This will be my entry into the Mac world and I wanted to get your opinion on the AirPort Extreme Time Capsule. Is this a worthwhile purchase? I already have a high speed wireless modem from my cable provider and I'm wondering if AirPort is just another wireless modem with a built-in hard drive. I'm still fuzzy on if this a replacement for my cable modem(doubt it) or if it's just a wireless hard drive. Seagate has a 4TB drive for $150, so is this a good replacement or am I paying a premium for the apple brand? It sounds like I can connect external drives to airport. I have a few WD external drives at home (500GB, 1TB and 2TB) that are connected/formatted for my PC. If I connect one of these to AirPort, can I still access the files without formatting? Thanks!