You can use Wavelab, Halion, Cool Edit and Fruity Loops and so on... Best is Fruity Loops. You need control over the envelopes/pitch. Just take the attack from kick A....Then add the "Body" from kick B....Add a second attack sound from kick C....... Then EQ them, (pitch) fine tune them, compress them, - hey!!
Do you guys have really so little fantasy?
@Tommy
You have uploaded some Kicks from "Techno Trance Essentials". Doug won?t be happy about that. Anyway, you have uploaded the wrong Kicks

The really hard ones are in the folder "Techno" and "Hardcore"