My question is - how far back would you go?
If seriously confronted with this proposition, I would probably not take the risk. My father died of cancer, as did one of my aunts (from my mother's family), so, I would be weary of being too far from more modern treatments and/or diagnostics. It would be tempting, of course, to be able to witness some key events in our industry first hand (maybe even nudge them in a better direction). I would, certainly, be at the homebrew computer club meeting when Woz presented his Apple I. About a year later I would talk Woz into (or help him with - I still remember 6502 well enough) integrating floating point into Apple's BASIC. Then, I would try to persuade the IBM execs not to ditch CP/M-86 for PC-DOS. And then I would call it a day and head back to a much nicer 2011.
I could also lobby for Thorium reactors in the 50's...