My player for the kitchen consists of an old HTC wildfire phone running SqueezePlayer and a pair of Altec Lansing amplified speakers. This has been working well for a week or so. Since I already had the phone and the speakers spare, the total cost so far is A$5.29.

I'd like to add some local control buttons. I'm thinking of wiring up 3 buttons as per this article http://hackaday.com/2010/11/03/patching-into-android-music-control/ and then using Tasker and the autosqueeze plugin to control the player. I may also need Headset Droid to capture the button presses.