Monk, I suspect that is a popular spot to photograph, its about 3/4 of the way up the first climb after the cruise down Glen Kinglass, the point where you realise that the last few k along the Loch are going to hurt and a wee stop is due.
Sanny, I did it over two days, Day 1 was Inveronan/Glen Kinglass/Connell. Day 2 was Connel/Bonawe/Track Along North Shore of Etive/Kingshouse for Lunch/WHW to Inveronan. The track along the north shore is all good going apart from a couple of very short pushes up steep/loose parts of the track and a short bogggy/rocky section as you near the end of the Loch.
Camera is a Pentax Optio WS80 waterproof. Pictures are only good in good light, or underwater, but its pretty robust and obviously doesnt mind the scottish weather. It's also nice rinsing the camera under the tap if it gets caked in mud.