Drusso - you still have the Mayo manual from your EMG rotation? Read that and you'll be fine (assuming we're shooting for a pass, not honors). Katirji's book is good for review as well, and a quick read. For practice questions, I used the SAEs from Archives. Also, don't neglect reviewing things like filters, SSEPs, MEPs, intraop monitoring, and quantitative sensory testing.
Also recommend listening to CD-roms for waveform recognition. Suggest (if you can) listening at different gains and sweep speeds, because the standard settings you use may not be the same as the examiners'.