I use the mackie 1402, which has two stereo sends: Alt3/4 and control-room out. Both sends are selectable by channel, and feature a pre/post fader toggle. Jon > I like the Mackie LM-3204, which has two mono and two stereo effect > sends (only the mono OR the stereo are available at any given time per > channel). All of its inputs are mono/stereo. The MONITOR bus also > makes a nice stereo send, as does the AUX 3/4 bus.