I appreciate your advice and assistance.
I’ve used some of these apps before (but certainly not all of them), so I’ll have another look shortly.
Having said that, I’ve been using my botched-together solution for a few days now and quite like it! Give it a go yourself – and see what you’re missing 😉
All you need is a computer running Firefly, a (Windows) computer running BroadWave and iTunes. I realy like the iTunes interface – and more importantly, so does she-who-must-be-obeyed 😉 so i’m most likely to stick with it for now until a better way of using iTunes to stream to the Roku comes along (of course, still using Firefly as the media server!).