You should just get a pair of Red Terror's and leave it at that.
The Green Terror is usually very, very aggressive and is one of those "large-mouth cichlids" we all love so dearly.
I love them.
I don't know if I'd mix green/red terrors.. They might go fine together.
Jaguars are ridiculous and getting just one would outgrow your tank eventually if he has a good life. My friend has a 14" Jaguar, who is the proud father of a 22" Jaguar.
They don't stop growing and their mouth is usually about as big as their head.
Alot of my friends, and even myself, hate or strongly dislike oscars.
They're ugly, eat eat eat, aren't as aggressive as everyone says, but they're very smart.
I always consider it the pitbull of cichlids.
If you want to stock a large tank with medium-large cichlids that will most likely get along,
remember to make obvious territories and caves.
Spend a lot of time researching each individual fish before you even think about buying it,
http://badmanstropicalfish.com/
http://www.aquaticcommunity.com/
These are two websites I use alot, along with other various websites and of course,
MFK! (But honestly, people would rather have you google your questions as much as possible before asking here.. we get tons of "Can I put an oscar with a neon tetra and 5 large goldfish in a 75 gallon forever?"
Severum
Angelfish
Geophagus
Discus
Ramirezi
Look all these up and see if they strike your interest.
Africans would work really really well for what you want though, but they can be a little difficult to upkeep.
Best of luck, and sorry about the book.