Talk about selling the farm.

I think the deal will be somewhere in between the first and second proposals
maybe
Heatley
for
Gilbert
Gagner
2nd round pick.
Heatley is obviously the best player in the deal, but he has requested a trade(which I believe automatically lowers his value), and he has a rather large cap hit, with the cap expected to come down soon. So you won`t get the moon for him.
I think if Ottawa was interested, a Lecavalier for Heatley deal could work. Tampa would shave off a little salary, and Ottawa won`t deplete it`s talent level by trading Heatley. Ottawa may be able to get a little more out of Tampa as well considering the access salary and term they would take on.