Brady is huge upgrade, Gronk is a good upgrade and i think Megatron might actually be worth AP+Jones
So i'd go with the deal, but it leaves you a little wounded for this week i think.
You need a TE and you lose pts from AP that Brady aren't there to pickup.
Anyway, it's a good move IMO and will leave you a lot stronger for playoffs, if you can make it there.
What's your ranking?
2013 roster (10-man PPR league)
QBs: R. Wilson, Romo
RBs: D. Martin, Sproles, L. Miller, G. Bernard
WRs: R. White, Amendola, Josh Gordon, Edelman, James Jones, Keenan Allen