Hi all, aside from occasional word processing on Macs back in college computer labs (mid 90s), I am completely new to Macs and absolutely loving my new refurbished 20" iMac 2.66. Why'd I wait so long!? I'd really like some input from you Mac-knowledgeable folks to help build my system right the first time, and thus, save myself from time and ca$hola. Here is my situation: I am looking for a recommendation for a decent audio interface. This will be for solo home recording. Bass, guitar, vocals. I don't need to record many tracks simultaneously since I will be using this solo at home for the majority of the time. I am looking for a good, solid, 'bang for buck' recommendation. Firewire or USB? I currently own a 1TB USB WD Elements harddrive that I bought for my previous PC. I bought it to store all of my iTunes lossless music (currently 100gig and increasing slowly). My current iMac has a 320GB harddrive. I am concerned about the internal harddrive being filled with my iTunes music. Additionally, I need a plan for where I will store my garageband (future logic express) recordings. What do you recommend? Should I keep this USB external harddrive and continue to use it for my iTunes and future garageband (logic express sometime down the road) files? Or, should I try to get rid of it (sell it to someone I know) and replace it with a firewire external? As far as I can tell, I will need to decide if I am going to go firewire for the external or firewire for the audio interface. Additionally, I would like to use Time Machine. Should/can I do that using my current 1TB USB external? Maybe I should go a different route? Sorry for being all over the place, and thanks for your help. I'll be back on the forums after work to respond to any follow-ups if necessary.