Apple has pretty much rendered them obsolete, despite shilling an inferior product. Aside from the fact that the playbook won't turn on, the playbook trounces the ipad in every way.
I tried debricking this pile of guano two days ago to no avail. Going to contact customer support on my off day (since I'll be on the phone with Istanbul for a good 2 hours atleast) and have these arse RIMs set things straight. 1 yr warranty on playbooks, but the whole process is supposed to be an ordeal.
Don't buy an external hard drive, unless you plan on buying it, transferring files to the drive then turning it off; the only time you should ever turn it on is when you need to back up stuff.
Buy a nice 2 TB internal drive. They are so cheap.