Hi everyone, I recently got a chance to check out the NeuroSky MindWave headgear; it's an inexpensive, single dry electrode EEG system for under $100. If you have any questions I'd be happy to answer them. You can check the posting on my blog here http://mdbreview.blogspot.com/2011/09/neurosky-mindwave.html.
If you have a project you are interested in having reviewed and shared, please feel free to contact me at majordecibelreview@gmail.com
I have not connected it yet, but I understand that it's fairly straightforward (they have documentation on the manufacturer's website). So far I've been focusing on using their API to grab the raw signal values, and import them into MATLAB where it's simply to try different filtering techniques and visualizations of the data.