TOS, The Movie Era, and the Forgotten Years
My group really wanted to bring themselves through the TOS and Movie eras and it's going quite well. We've hit our stride in our 2nd season and plan on winding up in 2270 getting booted up into a refit Constitution, complete with fashion pajamas and really cool belt communicators. The plan is to end the series at the year 2300, but afterword, I really would like to throw a series placed in those "Forgotten Years".
Like Admiral Wolf wrote, it gives a lot of room to play with when you adventure between eras.
And you're right! So much room to play with and so many adventure ideas!!! For example, the Klingons and the Federation starting to get along, the Romulans disappear, the Tholians attack, Spock's marriage, the first contact with the Cardassians.
If an era screamed to be played it's this one. Lots of time to show and test new warp speeds, introduction of the Constellation and the Ambassador; I really love that ship, the Ambassador!
Not to take anything away from the TOS era! Speaking of... I plan on dropping on the board soon a Holloween episode dealing with the Tholians (or at least the good parts of it) and putting in Tholian ships on the Utopia Planitia forum.
Erik