Well, as it turned out, there weren't that many at the protest - estimates ranged from 20-50 at the max. :)
Monday
We left campus at around 9, and arrived at the Washington Convention Center at 10. However, we discovered that the exhibits did not open until noon, so we waited around 'till 12. Then we dashed in and stopped by as many booths as we could in 8 minutes, before heading back upstairs for an ROTC luncheon.
At the luncheon, I learned something about myself - I eat faster than everyone else at the table. People were making comments about how I had finished my salad when they were only half-way through. 
We listened to a speech given the the General in charge of EUCOM (European Command), as well as a Captain who had served in Iraq. Then some awards were presented to different cadets and schools. One of the cadets who received a reward was homeschooled his entire life. 
Lunch ended at 2:30, and we were given 1 hour to look around. We quickly went from table to table, stuffing our bags with free stuff. We only hit maybe 70% of the booths - there was so much stuff! I had really wanted to talk with some of the people there about my research project on Future Combat Systems, so I asked Captain Wingate if I could stay longer and take the Metro back. He replied in the affirmative, so I stayed for another 2 hours.
Here are a few pictures of some of the things that were there.....sorry about the quality. 
One of the (ahem S!) many robotic vehicles at the conference.
A model of an armed Predator! You can't see it very well, but, in addition to 8 Hellfires, it has a couple AIM-9 Sidewinders and another missile which I didn't look at close enough to identify.
A Stryker MGS (Mobile Gun System)!
The Class IV UAV for FCS - pretty much finished.
MP5s at the HK booth!
Of course, what would be an Army conference without an Abrams? (How on earth did they get that - and the dozen other vehicles - into the basement of the conference center?!)
I stuffed my bag with lots of goodies - pens, brochures, magazines, etc. Probably 30-40 pounds of stuff. :)
I also joined AUSA, so I was able to wear the "AUSA Member" badge thingy during part of the conference. :D
Wedesday/Thursday
Well...I did regular PT yesterday morning. Sgt. Jennings - the 300-lb-all-muscle-former-drill-sergeant - lead it. He's a really nice guy, but he really knows how to get you in shape! :D
Classes have been going better....BTW, I got a "B" on that paper I wrote in 1 hour (the only reason I didn't get a higher mark is because I didn't have an intro on the essay). So I'm happy about that.
Yesterday, I spent a little bit of time helping to get the ROTC building ready for the high-ranking General who stopped by this morning. One of the MS IIIs in my squad thanked me for coming out and asked if I was interested in going for Cadet of the Month, since he would be willing to sponsor me. :) (I told him that I wasn't ready yet.)
One of the MS IVs let me ride along with him to part of Fairfax where I was able to drop off my uniform to have the patches sewn on (I tried it on my own, and it did NOT look good. :D ). We also stopped by a surplus store, where I bought a lighter (yes, I will be using it - to burn off threads from my uniform (it's fire-resistant, so burning is actually better than snipping). 
).
Today, I learned that, as of the end of this month, the monthly stipend will be increased to $300!
BTW, I got 102 on my first ROTC test. Although Captian Wingate (who branched Aviation) took off 100 points when I mentioned that Infantry is the best branch. I plan to appeal that to the Colonel.