1) No. I'm assuming you are talking about a thread lubricant. Others may not agree, but I've read that its unnecessary on radially-laced wheels, as they may loosen of their own accord since the nipple does not lie at a strong angle in the eyelet, and that even in the rear it is not too important with the high quality of spokes and nipples these days (Sheldon), so I opted not to spend the extra money. If this proves to be a problem on the rear (I'm guessing I will know after a few miles) then I'll take care of it, but really I'm not too worried. (Should I be?)
2) Yes, I feel that by doing things like squeezing spokes at the crosses, tugging on them every whichaway, I did a decent job. Hey, they didn't have tensiometers back in the old days, right? I'm probably going to re-truing the wheels (at least the rear) after the first couple rides anyway, as the spokes will probably settle a bit more, so tensions may change.
3) I'll have a signed 8x10 glossy for you the next time I'm out for a ride.