I was doing a late night haul through the internet and did a Kayak check as someone on here suggested. It came up with some small online travel agents who were quoting £2400 online but you had to call to book. There were 3 or 4 companies (Traveloworld and some others) that were all quoting silly money, so I called them all the next morning and picked the ones I liked the best.
This guy said he couldn't do £2400 but he could do £2800 (which is 4 adult tickets, age 12+). Flying with Virgin. It was a bit scary for a while as he couldn't even book the tickets on my behalf until they were released last week.

I don't know whether they will still do cheaper prices as the flights have now been released
The company I ended up with (and so did a friend of mine) is called Travel Decorum and they are based in Southall. Very friendly and keen to do business. I get the impression they get work by word of mouth, so at the moment are really trying hard to impress me! lol .... goodness knows how long that will last!!

I ended up booking my whole package with them as he also beat Disneys price by £200 and I still get a $100 gift card.

They are ATOL protected and I booked with my credit card just to be sure.
I have done DIY both times we have been over and this is definitely the cheapest flights I have managed to get.
We are going out on the 18th August 2014.
Keep looking... lots of people of here seem to think that there may be sales still to come.