Well after a bit of waggling we booked.
Ryanair (who we didn't really want to fly with) were £280 with 20kg luggage and seats but crap flight times.
With easyjet we are coming home a few hours earlier (day before but very late so we don't lose much considering the flight out gets us there much earlier as well. And the Ryanair flight was early the next day anyway)
£253 all in with 15kg and seats.
Cushty