The 340's are more placement picky only because of the larger rear port and need more space behind them.

On the HK's, as far as I know, the A-Bus port will not act as an ethernet port.

I am not sure which media players support FLAC, but for MP3's, I use the Linksys Wireless Media adapter to stream music from my PC to my audio system. Works great.

No need to leave us in peace....stick around and keep asking questions.

-curtis