I only have 800 MSP sitting in my account. I beat the main campaign of the game. What DLC pack should I pick up?

broken steel.

Broken steel for sure and if you get more than operation anchorage you get tons of sweet items at the end

I don't have it but Point Lookout looks like the coolest one so far.

Point Lookout is probably the coolest one by far (well at least until Mothership Zeta comes out) but if you can only have one or only have one at this time go with Broken Steel. Broken Steel adds more to the game than any other DLC. Mostly in the way of the level cap increase and perks but some nifty items are added as well as a fairly interesting quest that ties up some loose ends of the original game. Also the ability to play on indefinitely after finishing the last quest is what really makes this DLC worth it. You no longer have to relegate storyline quests to the back burner while you do side-quests. Now you can enjoy the game at any pace, not the pace dictated by the game.

I would go with Broken Steel just because it adds (fixes) a lot to the main storyline. However, Point Lookout is really cool and adds a pretty large new area to the game for you to explore. You should be happy with either one I would think. All the dlc packs have been great though in their own unique ways.

Broken Steel, again, and then Point Lookout.  Anchroage is really short and kind of lame for 800 points but the armour that you get at the end of it is Godly - because its invincible.  Pitt is really buggy but it's gotten really better since initial release.

I like Point Lookout the most so far; it has a nice balance of the open world stuff as well as a cool main quest.

But at the same time it's hard to pass up 10 more levels and the ability to keep playing the game.

Go with Broken Steel.

Broken Steel.
You'll be able to level your character as well as gain more perks in preperation for playing the other DLC.

broken steel

Another +1 for Broken Steel. I'd feeling like I was wasting my time if I played any other DLC stuck at level 20.

Broken Steel.

while point lookout is the best
get broken steel just adds so much more.

I assume you're playing the 360 version, in which case Broken Steel is definitely the best bet content wise. Also while Point Lookout was fun, I've definitely spent more time playing Fallout 3 after Broken Steel came out than after Point Lookout came out. Trying to get to level 30 will take plenty of time to accomplish (granted you're not using any XP exploits), not to mention *spoiler alert* you have the option of blowing the hell out of the Citadel. *spoiler alert* :P

broken steel sounds the best.

Broken Steel.  It raises the level cap and the ability to level up is a major reason I've invested so much time into the game.

I'd go with Broken Steel, since it affects the main storyline and upps the level cap.

It's been a week guys, I think he made up his mind by now.