Best deal for us was also thru Disney.co.uk as they gave 42% off a studio at OKW as well as free regular dining plan. Worked out at £91/night for studio and food for 2 adults and 1 teen. With the current exchange rate it works out cheaper than a budget room offsite and dining offsite which is what we usually do.
You would have to go a different time of year, June is already a busy time as all US schools are off then, doubt they need to do free dining. For UK offer you have to go August or Sept. It will be probably be offered on Disney.com in a few month but can't see there will be same deals as we got in UK. Package we bought cost £2,164 on Disney.com its over £6,000 just can't see them cutting prices so much.