I've been using Freecom drives for a number of years
This one click here is the same as one I have except mine's 120GB. It's powered by a USB port so doesn't need a separate power supply.
The 2 I have have been reliable. To to be honest a warranty is not much use if the drive fails and you lose all your data. An additional backup medium should be considered if this drive is intended to be the sole data repository.
I did have 2 LaCie drives which failed within 2 years. I may just have been unlucky.