DubTrub,
Thinking about the amount of Data you are keeping, a good Dual Standard DVD+/-RW is the way to go. (It also burns CDs, so you get the best of all worlds.)
Setup a couple of fire safes in multiple locations and setup days of the week for each location that you take that day's backup to. That way you have your data in difference locations, in case something happens to one of the locations.
Take Care,
Richard