I'm thinking aboiut getting a 1TB Time Capsule to use as my main backup source. I understand the TC also doubles as a wireless router for either cable or DSL. my (dumb) question is this: can I use the TC as a wireless backup hard drive and continue to use my current wireless router? if so, how hard or easy is this to set up w/o it acting as a wireless router? I'm thinking so but I want to make sure.