I have been quite happy using GuitarPort to record using Cubase SE, but have been thinking seriously about upgrading. There seems to be a few options at the moment. I have an RME Audio card that I am very happy with, and was thinking about changing my guitar interface. I only have a P3 running XP SP2 with 1 gig RAM. Has anybody used a Waves GTR System and PRS Interface, Line 6 Toneport or any other interface that they would recommend or not?