I hate big bets with draws that leave me vulnerable on the turn if I miss.
I think I either try to see turn and river cheaply or if I suspect both flush and str8 outs are good (as I would here against one player with a big hand) I'm pushing all in on flop. That way I'm getting my money in at better than 50% as I will see both turn and river cards.
If there was a third player along (not clear from your description) I might be worried about a better flush draw (there woun't be a worse one out there for sure) but if you are going to play suited connectors to a pre-flop raise and get heads up on the flop with flush and open ended str8 draw it's an auto push for me.
Anyways the all in push on the flop surely gives you better 'fold equity'
[The above is a joke btw - there isn't much fold equity here- a player who is overplaying AK or AQ here is probably bad enough to call anyway and the only other feasible hands AA-99 will not be layed down by their holders on a $50 NL table on a non-monotone flop.]