Cemiess wrote, "Do we really want to be something other than human? A ball of energy? A spaceship? Have you not heard of sex? ...if we go outside the paradigm of being human this will be lost."
Well, not everyone wants the same thing.
I'm guessing that, among your many goals, you'd use your extreme longevity and new abilities to begin a lifelong search for true love. And that's perfectly fine, if that's what you want.
But your motivations are different from mine. I think the concept of soulmates is illusory and leads to pointless misery. I think it's much happier to believe that close enough is good enough and that there is always more fish in the sea. The two kinds of love that matter most to me, the ones were I get most teary-eyed, are friendship and love of the world. Perhaps my two deeply personal questions I want to answer are: How long can a friendship last in the face of eons of change and will boredom ever creep up on me?
It's true that my emotional outlook shapes my decisions as to what kind of body I'd ultimately choose. For me, a homo sap body, even an mildly enhanced one, is just not enough for me to face an eternity of change and experience with.
Perhaps we can engage in a little pigeonholing here and classify all transhumanists into two big camps: The revelers and the discarders.
The revelers, in broad strokes, want to use these technologies to really mine out the experience of being human. They want to explore the entire perfomance envelope of the homo sap body and brain. Youth, durability and memory-swapping will let them do this, no matter how hard they party.
The discarders, in broad strokes, are more monkish or nunnish. They realize, correctly or incorrectly, that the homo sap body provides a tiny portion of all the kinds of experiences that might be possible. The lure of bigger fields to play in draws them more strongly than the slightly enlarged field offered by the transhuman body. They want to leap straight into be being post-human, to experience emotions and thoughts that are simply impossible for mildly enhanced homo sap hardware to process.
Perhaps there'll be crossover between the two camps as the eons pass. Discards might forget what it feels like to be human and return for a time to the world of revelers. Revelers might grow bored with human experience space and migrate into radically different forms with the other discarders.
Anyway, my initial impulse is to jump into the discarder camp as soon as technology will allow for it. I guessing that Cemiess and like minded people will want to linger for a few centuries.