Google "USB Data Acquisition"

These guys look promising:
http://www.dataq.com/data-acquisition-starter-kits/data-acquisition-starter-kits.htm

or

http://www.mccdaq.com/solutions/USB-Data-Acquisition.aspx

We use a bunch of these at work:
http://www.omega.com/ppt/pptsc.asp?ref=OMB-DAQ55&Nav=dasc01

I'd get one that also accepts thermocouple inputs. You'll wonder how you did a lab test without it. Then again, I'm an ice machine engineer.

By the way, you want a "load cell" to measure the press force.
http://www.omega.com/toc_asp/subsectionSC.asp?subsection=F03&book=Pressure

Standard disclaimer.
_________________________
- Tom S.

"Never trust and engineer who doesn't carry a pocketknife."