hi.. i want to record an entire drum kit onto my computer so that each drum has its own track in Logic Express. now here's where the confusion lies.. i'll be needing about 8 inputs..one for each drum mic. do they need to have pre-amps or can they be un-amped. i've been told that using un-amped inputs gives pretty similar results to that of using amped inputs and is much cheaper. i'm looking to buy a firewire audio interface and had been looking at the pre-sonus firepod. but have now been told i won't need 8 mic pre-ampd chanels to accomplish what i want to do. HELP!?