madami naman mahahanap na free drum/cymbal sounds sa internet...look for ns_free kit for example
but a lot of what makes "real" sounding hi hat parts have to do with the programming: velocity mapping, variations etc. post this in the music tech forum for more tips. thats where the sequencer geeks hang out
may post na din yata nuon dun tungkol dito
also you put this in the electronic music forum so its a bit strange if you are interested in "authentic" sounding human patterns
