go check em out b4 buying anything and be honest with your needs.. the MOTU will give you problems on a pc and is notorious for this. if your gonna use it for years to come you really need to consider this! The RME fireface is 'really good' for the money and i personally would choose it over the MOTU but it is fed through Firewire, which is actually a usb on steroids, and will require a firewire port from your pc. Also its worth taking into account that if your only gonna record One track at a time from a hardware source, then it mght be worth looking into an interface with better but less convertors! Or maybe you will be multitracking live, in which case you will need more in's?! Dont 4get that you can record in MONO too if the signal really doesnt need to be stereo.. either way good luck mate !