I don't get the difference between...

[Broph]

http://store.apple.com/nz/product/MB321X/A/AirPort-Express-AirTunes?fnode=MTY1NDA0Mg&mco=MTA4NTc4MTE

http://store.apple.com/nz/product/MD033X/A/Time-Capsule-3TB?fnode=MTY1NDA0Mg&mco=MjI5NzM1NTU

http://store.apple.com/nz/product/MD031X/A/AirPort-Extreme?mco=MTg5MTcwMTc

What's the main differences between these three?

I know that the Airport Express doesn't have a Hard Drive so you can't back up to it, and I know that the Time Capsule can't handle AirTunes...

Is the only difference between the Time Capsule & the Airport Extreme (AE) is that the AE doesn't have a Hard Drive & can't back up to it?

I just want to connect my modem to something to create a wireless network, and back up to it and share things. So do both the AE & TC act as a router?

Can Apple TV communicate with the Time Capsule (so if I were to store movies on the TC, I could stream them to my TV?)

 

[lexvo]

Is the only difference between the Time Capsule & the Airport Extreme (AE) is that the AE doesn't have a Hard Drive & can't back up to it?

Yes

I just want to connect my modem to something to create a wireless network, and back up to it and share things. So do both the AE & TC act as a router?

Yes

Can Apple TV communicate with the Time Capsule (so if I were to store movies on the TC, I could stream them to my TV?)

Yes, Apple TV can communicate with Time Capsule and Airport Extreme.