so i have an mbox coming in the mail anyday now and I'm just thinking before it get here of how I'm to set up speakers with it and my computer. as of now i have two Alesis monitors hooked up to my mac. i have them running through a splitter from the headphone out of the computer and then split to 1/4 inch for each speaker. now i know with the mbox there are speaker line outs. so i hook my monitors directly out of that but then what does one need to be able to have normal computer sounds aand such, still running out those speakers? much love always with help.