i've found a couple things are popular in the 'beat making' world: -reason, mach five, etc. triggering samples -acid (beat construction from loops) -combination of both plus some live instrument tracks massaged into loops in pro tools and, the overwhelming winner when it comes to platinum selling r&b/hip hop: the stalworth MPC!!!...seems like the guys selling the most records still program with their MPC and use midi outs to seperate the tracks in pro tools...or if they're using the newer units and the expansion cards they'll dump into pro tools via analog outs... i haven't heard very many people using sample/grid mode...seems time consuming... i use reason...huge library of sounds for reason...every machine you can imagine has been sampled and turned into a 'refill'... WHAT ARE YOU CALLING A DUB? don't understand the question... detroitkruk