Look, some people are perfectly content to swap a DVD with Netflix once a millenia and watch Matthew Broderick and Michelle Pfeiffer in Ladyhawke on their Xbox 360 -- other people demand something a bit more "hip" on their Instant Watch queue. Netflix is apparently investigating the possibility of an additional $10 monthly fee to watch HBO shows and movies on the streaming service, or at least has a poll to that effect. For people that keep cable around just for things like HBO and Showtime, it's an attractive proposition, and perhaps a bit of an inevitability, but at $10 a month we'd expect Netflix to toss