I'll spend some time ruminating on small wonders:
Wall Street
Great wonder, makes us a lot of money. There are 2 problems with it, though.
1) Maintenance costs. We are running near 100% science, so building up to 1000 gold inventory isn't easy. It requires 5 SE, which means that, unless we were going to build them anyway, we would have 20 gold in maintenance cost that we wouldn't have (5 banks and SE), so to just break even, we would need to keep 400 gold in the bank at all times.
2) Shields required. I don't think we have any banks yet, so 5 banks and 5 stock exchanges are 1800 shields, total, plus wall street is 300, so that's 2100 shields, which is 21 bombers.
I'd rather have the bombers, even if we would actually only get 15 or so (cause of shield overrruns)
Secret Police Headquarters
Can't be built unless we are in communism. Only has an effect in communism. I don't think we want to be in communism....
Intelligence Agency
Useful in many ways, but I don't know how if it works the same way in multiplayer. In particular, being able to see how far along a civ is on it's SS is useful, and being able to sabotage production is great.
Costs: Have to research espionage and it takes 400 shields. Espionage missions cost money and we are not likely to have a lot of it.
I think it's useful, but not necessary
Battlefield Medicine
Useful in itself, plus makes a nice prebuild. Would be particularly useful in a game like this if we invade another continent, because we can heal.
I'd like it, but I'd like it as a prebuild for now.
Military Academy and Pentagon
Can't build until we get a leader, of course, cause you need a victorious army for mil academy and 3 armies for the pentagon. If we war, these will be nice - dropping a 4 infantry army onto another continent will cause consternation, especially if we take a city with marines. But is moot until we get a leader.
Apollo
Central to our plans, of course. Need aluminum to get it
Heroic Epic useful if we are going to have a LOT of war, because it increases leader chances. Not very useful otherwise. Dependent on that first leader/army, of course.