OpenEEG / Part List / Electrode Placement / Build
$35.60 E240N-HJS 8mm shielded Ag-AgCl
$45 8 mm shielded Ag-AgCl Touchproof Adapter CableEL120 electrode with contact posts
$36 Detachable EEG Disc Electrodes and Leads (100/pkg) $43 Earclip ME-SAF 9.5mm pure silver
Stackable electrode jumper
2/pack $48
Web pages for products listed in comparison sites: "The BrainMaster is a low-cost, flexible, general-purpose brainwave monitor. It connects to a PC in the same way that a modem does; but instead of communicating over the telephone network, it monitors brainwaves." href=http://www.brainmaster.com/ and also at http://www.dynamind.com/eeg.htm#bm
Waverider biofeedback system http://www.futurehealth.org/waveride.htm
Procomp2 http://www.futurehealth.org/procomp2.htm
The HAL-4 EEG Biofeedback Brainwave Analyzer is no longer in production, but you may find useful information on thier site. http://www.cc-concepts.com/products/hal4/
A group dedicated to the making of a low cost personal eeg machine "The aim of this group is that a personal eeg machine will be sold at $100 price range" http://lists.sourceforge.net/lists/listinfo/openeeg-list
Discussion group on biofeedback and "best eeg machines" http://groups.yahoo.com/group/biofeedback/messages/1381