My favourite sample-based soundtrack; turns out it's actually the same composer working with the same software as yours :D

https://www.youtube.com/watch?v=2yDVM77lGlM

Also noteworthy is that you can open these games' soundtracks in a tracker like http://openmpt.org/ to see the arrangements and play samples individually. I tried making music that way a while back and was sad that all my tunes sounded as shitty as the samples I was working with, then opened up the Deus Ex OST and found that his samples were worse, and he was working with fewer channels and filters; it's just pure skill in arrangement that makes the music so great :)