External Hard Drive

I was thinking of buying some external USB (or possibly firewire) hard drive for awhile now. So I was looking at different options and found this puppy. I kinda like the idea of having all-in-one features, but:

• It’s a bit pricey
• It looks bulky

I’m not really sure if I need a DVD since I don’t use it that much. Does anyone know anything really worth spending $$$?