Then again, there's almost nothing I would not do for immortality. This is not necessarily because I do not believe in an afterlife (I don't, really, though I won't say I know for sure one way or the other)--but there is little doubt in my mind that if there's an afterlife, it's nothing like this one, and I'm not done with this one yet. There are still way too many things to see, do, learn, and experience. The afterlife can wait, preferrably until the heat death of the universe.
Which, on a scale of eternity, isn't really all that far away.
So, out of curiousity, two polls. The first: What would you do for immortality? The second: How attached are you to your body?
Ready, kids? Here we go:
A drug regimen (eg, a daily assortment of pills to halt ageing and boost the immune system)
Replace your organs with mechanical devoces as they fail (eg, replace your heart with an artificial heart)
Replace your entire body with a mechanical equivalent that worked like the original and could not be detected as mechanical except with an X-ray
Replace your entire body with an obviously mechanical, but humanoid, equivalent
Replace your body with a completely non-humanoid mechanical replacement (eg, transfer your brain into the central control system of a spacecraft)
Be injected with nanoagents--self-replicating, self-determining, microscopic machines designed to repair tissue damage
Non-destructive uploading (copying your consciousness into a computer--you would still age and die, the computer copy of your memories would continue)
Destructive uploading (transferring your consciousness permanently into a computer, during which your body is destroyed)
And, somewhat but not entirely related:
Change your body permanently in a decorative way (eg, piercings, tattoos)
Use a temproary mechanical device, like an artificial pancreas, for six months while your body healed from an injury
Use an assistive device that compensated for a faulty organ or limb (eg, eyeglasses)
Use a permanent mechanical device, like an artificial heart, to replace a failed organ, assuming that your quality of life was not impacted
Use a strictly decorative, non-functional prothesis in place of a body part lost to injury
Use a mechanical prothesis in place of a mechanical limb lost to injury
Use a mechanical prothesis to replace an intact, undamaged limb, if the mechanical one were better (stronger, more sensitive, etc)
Replace undamaged structural parts of your body--your torso or legs, say--with mechanical versions that were better or more reliable
Replace your entire body with a mechanical body, even if your body was not dying, damaged, injured, or ill
Give up your body completely, if your mind and consciousness would continue