Thanks Jim. Well i want a hard drive but don't want to connect it directly to my macbook pro (ie: via usb 2.0), so i just thought i would need a wireless hardrive. Sorry but i'm a novice when it comes to this. Can you connect it to your router? I have a router (virgin media uk), but there are no usb ports. Ideally I want to have access to my media wirelessly as i'm looking at purchasing a sonas music system whereby i can play my music wirelessly. Also was thinking of getting the apple tv so i could then play my movies through that.
thanks
It is a common misunderstanding that if you have a wireless computer... then your networked peripherals also need to be wireless. You are not alone!
Your computer connects wirelessly to your home network. Anything on your network (independent if wired, or wireless) would generally be available via your laptop.
I generally preferred wired devices for things that do not need mobility. Therefore I prefer networked printers, drives, Apple TVs, etc to be connected to my home network via wires if at all possible. They share the common trait that they do not move around... and I think that wired connections are more stable than wireless. Sometimes it is not possible because of the difficulty of getting a wire to a specific location... in which case wireless is often sufficient.
What you are looking for is called Networked Attached Storage, or commonly referred to as NAS. You can buy drives that have built in NAS (either wired or wireless)... or you can buy NAS storage arrays (they hold several drives, and often support RAID redundancy). You can also attach a standard USB drive to certain routers, or other network devices and then the USB drives are part of your network.
You had asked about Time Capsules. One thing you can do is get a Time Capsule and use it for automated backup of your MBP. You could also use it as a place to keep some of your data per your post. The TC also does support the addition of USB drives and they are also on your network.
One thing to consider is your backup strategy. Many backup solutions (include Time Machine) will not back up network attached drives. Hard drives fail all the time, and you have to determine if you are willing to take that risk. For that reason, I like to keep all of my primary data on a computer (vs a NAS) that has backup running on it 24/7.
I actually own several NAS devices, as well as a windows home server. I have pretty much stopped using all of them because I do not want to keep primary data on them because of the backup limitations that I mentioned.
/Jim