My AC Adapter went south the other day and it seems I'm not the only one, and some people have mentioned that Sling doesn't have any in stock.
I'm usually weary of shopping for these online because of the different tips and such, so fortunately I was able to find one at my local Fry's.
Anyone who needs one, you can order this online. It does 5V @ 4A which the SlingBox Pro-HD (and some others) require:
It actually has two tips that will fit.
Retrieving data ...