Best 4 bay NAS storage ?

[Ry@n]

Im after some NAS storage, and want to use 2 identical HDD's to start with. Then have the option to add another 2 HDD's when i need to (if possible).

I would probably use Raid 1 for reliability, even though i have never used raid before.

So which NAS storage would suit my need?, they all seem to be expensive.
I dont have a price limit, but dont want to break the bank.

I would consider all alternatives also.
Thanks for any help.

 

[Ry@n]

Thanks for your help.
I didnt realise that all 4 bay devices would be so expensive. I might have to stick with a 2 bay.

Something like this looks pretty nice and simple to get me started:
http://www.overclockers.co.uk/showproduct.php?prodid=HD-007-SY&groupid=701&catid=14&subcat=707

Has anyone used one of these to give me some feedback ?
Thanks allot, its a big help.

 

[Ry@n]

As I said earlier I'm using a 1 disk version of the earlier model, newer models are generally a bit faster cpu and more ram. What info you want to know.

Just a couple of quick questions sir

-Can/do you turn it on and off at any time you please? Could i simply turn it on only when i want to backup files ?
-Do you just map the drive to your pc so it reconnects everytime you want to use it ?
-Does it have the hibernate facility so it turns off when not used? So you can leave it turned on.

Thank you.