I think the Conventions have lost their meaning (both DNC and RNC). The nomination is no longer a surprise, and people are so much more partisan now that fewer are looking to really hear what the parties are saying anymore.
I was almost on the floor of the Convention again this year (working, not as a delegate).
I was employed by the DNC 2000 in LA, I got to be on the floor when the balloons fell and what-not. I met Wolf Blitzer, Peter Jennings (who is very tall) was broadcasting from next to my department office, and I got into a shoving match with Ed Bradley of 60 Minutes (long story, I don't feel like typing it out). I went on from the Convention into being an Advance man for Lieberman. All in all a good way to spend a year of my life -getting paid, watching my job end in a politically divided 5-4 decision of the Supreme Court (Bush v. Gore), and then having great material for my Law School application.
Remember, both Conventions are more like corporate advertising than anything. Both sides are going to be as centrist as possible. Anyone who listened to the RNC 2000 (and took it seriously) would've never thought Bush to be as conservative as he is. So "buyer beware".
I wanted to go to Boston this year, all my old coworkers have been working the convention this year (and as a former employee, I get a sort-of VIP Volunteer status), but I have family coming in and I can't get out of it. Oh well. I like Boston, its a nice town. I'll be driving through the city next month.
[incidently, I hope your orientation went well]