cooledit (audition) can generate noise. open a txt file in a sampler and theres your noise. radio static is noise. get a mic, blow into it. put your finger on the tip of an audio cable. well thats more like a buzz. there are analog synths with noise on them, like the... juno i think? i have samples of that and as far as noise go its sounding pretty sweet. id layer it over all the hits to get a coherent sound, or id make hihats out of it, i also heard of a technique when you put a short 200 hz noise burst on the beginning of your snare (with a quick downwards pitch env i seem to recall) to make it more snappier. which could word i suppose.