I would like to stream music from an iMac to a speaker located in a toddler's room. The speaker does not need to be very loud or have amazing dynamic range, etc. I think I could do this by connecting any powered speaker to an Airport Express, though I'm wondering if anyone has any suggestions for doing it via bluetooth or with a speaker with built in WiFi or some other way? I'm not sure how doing it via Airport Express will work because my network is an AC network, and as far as I understand it the Airport Express is an N device and will slow down my network if put on the network? Thanks for any suggestions.