I use Dashware to overlay my Alfano 6 lap timer data on my video. RPM, Speed, G force and track postion are all provided directly from the Alfano 6. The throttle and brake display use longitudinal g force to calculate throttle and braking.
@SGCasper I believe Dashware is only for Windows, but according to this website it can be run on MAC by using some other software racing.qstarz.com/Products/Dashware%20Video%20integration.html