Hey I have a roland Td-9 and am using it with superior drummer, ableton live 8, a 2011 macbook pro (lion osx 2.3 ghz/4 gigs ram), and an M-Audio pro fire 610 interface; and I am working on decreasing the latency to a bare minimum while still having a decent buffer size for the best quality of sound. To decrease latency to a point where I could play in real time with real feel I had to set my buffer to about 80 samples. The sound quality is decent but could be a lot better with larger buffer size. However, when I increase the buffer size the latency increases as well, to a point where it is impossible to play. I was wondering if there are any pci cards or sound cards that I could buy to fix this problem/guaranty the best send output with smallest amount of latency. Is there anything I can do?