I also forgot to mention the biggest reason I chose to go the sell and purchase a brand new second replacement... When I called HTC for my first swap, I was on the phone for 60+ minutes. They submitted the pre-auth, it hit my account, but the rep said that it was denied and marked fraud. Which I found confusing, because a) the authorization would not have hit my account had it been been denied and b) they wanted to send it through a second time. Needless to say... It turned me a bit sour on the process.
However, I would like to say that beyond the process issues I've had, I love my nexus one. It's a great phone and really has immense potential. I received my new phone today and getting my phone back up and running was impeccably simple!