Thanks for the input. I called SRI the makers of PeakSimple, they say their software uses the analog out signal from the machine in conjunction with a digitizer box, which they sell for $1,500. My dilemma here is that i am buying this machine for a startup company, cash is limited. The crux is that the folks who are selling us the GC want to sell us their computer/licensed software (Chemstation) combo for roughly $2,500. I was trying to bypass that cost and just utilize an old office computer with peak simple. However the HPIB card connects with GPIB cables to an 83250 card in the computer, which is proprietary to HP/Agilent. So PeakSimple can't use the digital signal.
SO now it would seem my options are to pay 2,500 for chemstation or pay 1,500 for the digitizer/PeakSimple with USB line out (this does allow for greater flexibility as we can use any computer with a USB port, but it loses some precision).