Is this for a DAW or a lap top? If it's for your studio machine, usually your motherboard will come with at least one extra USB header.... it probably even came with an extra one in the box if you put the machine together

... if not go to a used computer parts store and pick up one of these:

And now you have two more usb ports
As far as firewire goes..... I've heard nothing but great things about the presonus firebox and firestudios....... the common thing I hear is something along the lines of.... "it just works".....
