Also, am I missing a piece of the puzzle here? How much latency is added by going from the keyboard through the MIDI FastLane device, then through the USB cable, then through the computer hardware, DP (4.52), the MIDI Track which routs to the Instrument Track, then out through the Firewire audio card (M-Audio's Firewire 410) before the sound even gets to the speakers? Is a near 0 latency pipe dreams for the way I have this set up?
Thanks.

(Dual 2.0 G5, 2Gig Ram, 250Gig HD, M-Audio Firewire 410, Delta66 Omni I/O, OS 10.4, DP 4.52)