If you need more storage capacity, these two top-rated Western Digital drives on sale from Amazon are great deals, they both have giant capacities of 3TB and 2TB respectively.

Free shipping is included from Amazon as usual.

These drives make for perfect Time Capsule expansions or Time Machine backups for any Mac, but are also great places to store your external media, iTunes library, and external iOS backups for anyone with constrained disk space like SSD users and MacBook Air owners.