If you're also looking for jungle samples, someone had posted a link to a massive jungle sample library a while back; I can dig it out and give it to you if interested. Some of them, especially the breaks, are used quite a bit in DnB tracks too (oh, hello there Bulldozer; how's it goin' Champion? xD).
Also, agreed w/ Freek. I'm new to this too, w/ just maybe 6 or so months under the belt. It's definitely overload to try and do EVERYTHING from scratch, and as I've come to realize now, it's not even so much about what sounds you use (even if they're all samples....tho you aught try to experiment building some of your own too, just in the spare time. You could see them useful in a future composition), but HOW you use them. The sounds are only a means to an end, 'cuz if the track is weak, no good a sound will save it :S.
Put it this way, you got a lot of older jungle and dnb tracks out there, and let's say a good # of them used non-custom samples. There's a very good reason so many of them are awesome to this day, and it ain't b/c they had the tech then to make some of the crazy sounds and clean productions we have today. Their compositions were just fuckin' perfect.