Hi, I just purchased the MOTU on a whim because I got it for 250 bucks from a friend in need. I use mostly sonar5 but I have used just about everything in the way of software. I really like the features of this card over firepods i currently use. I was going to buy RME but if the MOTU works out then ill probably go that route. My question is. I use PC, does anyone have experience with this usb card and PC? I know when USB started it was shakey but its been some time so I was hoping maybe it smoothed out. Of coarse I use usb 2.0. I have 2 systems one is amd 4400 x2 and the other is a p4 extreme. all my systems are maxed out with memory (4gigs) and have powerful proessors etc. I know RME is the best but MOTU is also a quality company. also do I really have to use xp pro with service pack 1?