What can i sow this late?

Due to events this year i have been unable to have any time to do any 
sowing or planting out until this week.
Apart from all my special cuttings dying from the heat in the greenhouse 
I have tons of seeds i can use.
What can i salvage from this late in the season?
Can i try sungold tomatoes even if sowing them now?
Just planted the Charlotte sets to see and also the onion sets as you 
never know till you try.
Trouble is I'm not sure about the other vegetables or sweet peas etc.
-- 
Janet
Hedgerows & lawns
http://www.lancedal.demon.co.uk/plants