The software the motec dash comes with (even the SDL) for log analysis is absolutely awesome, better than anything I've seen elsewhere. I'd love to have $20k just to blow on motec hardware
edit: Racepak does do a cheaper version of the IQ3 for display -
https://www.g35garage.com/ec/Product.aspx?ID=10514 .. no logging though. If you're only gonna be drag racing the car, and not logging inputs from a heap of sensors, maybe you could just use the internal ecu memory (I forget which one you have) for logging and get away with the cheaper dash?