i have been using the latest edition of sonar 4 producer edition and i think that program is excellent, although i will be switching to a digital performer/protools setup, i would recommend sonar to any pc users out there.

both of the interfaces you mentioned are fantasitic from what i have read- so it would really come down to price and options that fit your needs. i dont think you could go wrong with either one

I use Sonar 3 and wish to upgrade to version 4 for those workflow improvements. I also use Samplitude, which I love, but I expect Sonar 4 will be an indespensible tool for real world tasks.

If you want flexibility and inputs get the MOTU, but if you simply want high quality 2-channel conversion for monitoring the Apogee would be a better bet.

John Stafford