To boldly go...
Last night's triumph in Kerbal Space Program: getting the reusable interplanetary crew carrier into parking orbit. It was a bit fraught, as the design's a tad heavy with the 4 nuclear reactors hanging off the back end there... so the lift vehicle was gi-normicous, unwieldy, and almost unable to do the job. Indeed I expended almost a third of the propellant aboard putting the final stage into my standard 150km circular, equatorial orbit.
She holds a minimum crew of one, can comfortably support 4 (2 flight crew, 2 landing crew) and can squeeze in 9 in a pinch. Two high-gain antennae provide up- and downlink that should be able to support long-range telemetry, if that's ever implemented in the game, and two low-gain omnidirectional antennae should be enough for voice and asynchronous data. Four illuminated docking ports are arranged so that she can carry one crewed lander, one crewed orbital shuttle (not for landing, but for possible rescues of the lander if it comes up short of delta-V for any reason or for routine personnel transfer), and two lightweight autonomous probes (probably rovers, though I still haven't completed designs yet) and supply a total delta-V of ~10km/s if I've done the math right. (And if I haven't... well, I'll try to be stingy.)
So there she is, ready to take on fuel from a tanker mission that I'll send up soon. Then, when the next Duna transfer window opens I'll launch whatever lander design I finally come up with (still very much in test; the rest of the night was spent preparing for possible emergencies in an upcoming Kerbin orbit-landing-orbit test), the shuttle, and the probes, and after a couple of in-game months put some bootprints on another planet.
-- Steve'll give you three guesses on what she's named, but you won't need them given that the captain aboard is Kirk Kerman.