I am currently involved in a project where we do computer EKG analysis
quite a bit. I'm not sure what you are looking for in the signal.
EKG is the cleanest bio-signal to work with. EEG's and EMG's get a bit
hairy and inconsistent. We use S-Plus and Labview- both fine A/D and
signal analyis programs. I have also written some of my own stuff for
simple R-wave finding and interbeat intervals.

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 Rolan Yang            http://hertz.njit.edu/~rxy5310   Electrical Engineer
 rxy5310@hertz.njit.edu                             kyurius@tsb.weschke.com
 VR,ROBOTICS,FENCING,HACKING,INDUSTRIAL MUSIC,ART,EXPLOSIVES,INLINE SKATING
                    THESE ARE A FEW OF MY FAVORITE THINGS.
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4 out of 10 people are annoyed by ^ this.