1) You're on the 14th Floor, I doubt this will be a problem. Plus the Gardiner is always busy so your ears will get acclimatized
2) Expected occupancy given as fall of 2009 (From builders website)
3) I think the smell from the lake is west of this area; closer to Palace Pier.
4) I think the location is great, close to the lake, right beside the largest and best park in toronto (High Park). Plus no chance of any other building blocking your view in the future as all other surrounding areas are off limits to development. I think resale value will be great, plus the price per square ft is reasonable for a lakeside development, which bodes well for your investment. Compare the prices at the NXT and you will see what I mean.
5) Yes
6) Ground to 4th Floor at the front of the podium.
I'm curious to know why u chose the Nipigon though, the Couchicing looks like a better deal (end unit, lower price/sq.ft, view of both lake and high park. i know it is the unit right next to the Gardiner, but the Nipigon is the very next unit beside, from the 14th floor I doubt the noise will be any different for either unit).
My very long 2cents.