I always wanted a Universal Audio Apollo interface and I came across one on ebay for $800 dollars. They sell for about $1,800 new, so I quickly bought it. Not knowing the specifics on the hook up, I watched a video on how to hook it up. The first thing it said was to get a firewire card for your computer. I didn’t know what a firewire was so then it was a “what is firewire” video, and in doing so, I also see that many on the video are saying USB is better. So my question is, before I buy a $200 firewire card is, did I buy a good thing or is this outdated and hence the reason for the lower price?