http://www.dataq.com/data-acquisition/starter-kits/
The DI-149 has eight differential analog inputs, 10 bit (0.1%) resolution,
up to 10 kHz total rate (e.g., 5 kHz if two channels are in use, 2.5 kHz
for 4 channels, etc.) Comes with software that provides a strip-chart-look
output. Plugs into and powered by the USB port. Cost is $59. They have
other starter kits from $29-$300 as well as higher-end hardware.
DATAQ is very popular in the high-power rocketry community. I have used
their hardware and software to test hundreds of high-power rocket motors.
WinDAQ XL ($99) allows the data to be ported real-time to Excel.
Terry