My set-up sounds great on my machine at the office.
I tried it both directly line-in and going through the iMic adapter. They both sounded great. That really made me feel a lot better about my set-up. I still need to try it at home through the powered USB hub. I really hope that works, 'cause then I'd be able to do my podcast with my new equipment completely from home without any problems. If it doesn't work, at least I know that I can use my equipment on a different recording device and it will work, which is a great relief.
Now, I guess that's just one more argument for upgrading my personal computer hardware. ;-)