A really easy way to do it is to get your kick drum into a soft synth, and draw in the hits in your midi editor. It triggers and plays back for you. A high end example would be something like Kontakt or Halion into Cubase ... but Tracktion has a sampler in it and enough midi functionality for you to do this.
If you want to do it in real time, hook your midi keyboard up and hit the note you've mapped your kick sample to.
Hmm no i wasn't specific enough sorry. I record metalcore/metal music, am talking about recording acoustic drums but triggering at least the kick, like bands such as as i lay dying, and it dies today, etc...