Gil,
I have my BDP-1 hardwired as it was relatively easy for me to do it.
As for interfacing with the BDP-1...I use MPaD 75% of the time and Bryston MAX 25% of the time when it comes to listening. All of this is carried out exclusively on one of the iPads floating around the house. I use a desktop computer when performing administrative tasks (BDP-1 updates, music transfers, etc...)
I have (2) 2 TB external HD's connected to the BDP-1 and find it much easier to transfer music over the network instead of doing the "HD shuffle". Disconnecting from the BDP-1, connecting to my desktop, transferring files, disconnecting from the desktop, re-connecting to the BDP-1, and reading in the new music is just too much work - especially since I add new music pretty much weekly. Of course, YMMV.
George