Hi, I got a 2x2.8 Mac Pro but I didn't think of all issues I would face by switching (I'm was a PC until yesterday). I few things: 1. I have Logitech Z-640 5.1 Speaker System, and I used this Creative 5.1 sound card in my PC. I'm pretty sure this card wouldn't work in my Mac. What do you recommend as a replacement? Please try to keep it low(er). I did spend $2800 on a Mac but I have a ton of other stuff I need to get, so as long is it gives me decent sound, I am happy. In other words, is there something that's up to $50? 2. How should I format my internal drives? The OS is Extended Journaled. Should other internal drives be Journaled? Or does it make any difference? Thanks a lot for your help!