Having seen a recent deal from Birmingham, I've just found this deal from Gatwick. Seems like a bargain for school holidays! 2 adults + 2 kids for £588 per person, including flights (better seat pitch than Virgin, BA, BMI and Monarch), seat back screens, leather seats), decent hotel and car hire.
Should be able to go & come back without the kids missing much school, especially if you go for the Thursday 25 August option (although slightly more).
Other deals I've found related to this will be posted separately below, along with some tips for those that haven't been before.
Same dates with Virgin Holidays and similar spec hotel is £4,300!
Also Thursday 23 August for 14 days - little bit more though at £625 per person. Details posted separately below.