I figured you wre a hands on performance dj and i understand your reservations switching to a laptop for all your dj m'larky stuff.i'd like to use it as an add on instrument or what not, not strictly an Ableton DJ though. I find I need to play with records and beatmatch and all that, I don't think i'd be happy just using a computer to entertain the crowd.
have you tried to manually sync Live (on another computer) with Serato?
If you look in the tips section theres a thread regarding the use of a pitch wheel to control Lives tempo. I figure this is something similiar to using your slider on your decks for tempo matching so perhaps you could use Live as a third deck with extra features?
But you really need some advice from someone with experience in this area as iM really just shooting in the dark here. There is a solution for you Im sure of that.
Can someone help this chap.