Let the hive mind of Engadget get that for you.
"I commonly need to boot a system from an external disc and take a snapshot of the host system. I also then need to burn a copy of the image to a DVD. While I can do it with two separate external devices, and two power supplies, and two I/O cables, it'd be nice to find a small dual-drive enclosure. It would need to have USB, eSATA, and FireWire. Either slim-line or half-height bay for the optical burner would be fine, and space for either a 2.5- or 3.5-inch hard disc. Any ideas?"
The main point for me is that BPL wil interfere with a lot of communication devices, mainly Amateur Radio. And being one, I have to defend that point!
And yes ha ha, internet of phone-lines, ADSL came at a time when other broadband options were not there. But the spectrums for both DSL and Cable internet for narrow. And these are already ment to transport some kind of signal. For to make powerlines usefull, we are talking 100 times the frequency spectrum (bandwidth) all which make noise and can produce spurious signals that interfere.
Still today, new buildings and houses hardly get fiber. If they start using it, it gets cheaper.
Thanks Jerome, that's kinda to idea.