i posted this over in OTAP before i realized there's a tech forum so, sorry about the double posting.. I'm down to 80g on my 500gb external and struggling to keep > 10gb free on my laptop. i'm a photographer and shooting raw and keeping back-ups eats a ton of space up and i want a better solution than just buying another external hd or burning more dvds that will eventually fail on me. Preferably something with some or all of the following: - cheap - expandable - raid 1 - network accessible - lots of space i'm guessing a Drobo, or Hammer-Storage unit is the simplest solution but...is there anything else? perhaps some of u have built ur own systems that has all this? please share, thx.