Cheap tours or trips in Britain and/or France?

[DaynaBrown]

I'm graduating this year and I want to go to Britain and France including England and Paris during the summer of 2013. I looked at one website called contiki tours and for me and 3 others the grand total was about 16,000 and that's too much for some kids just getting out of highschool. I'm looking for something a lot like this that offers lots of free time, access to clubs and visits many famous places in these two areas. I'm looking at about 1,500 each. If you know of any other options as well let me know, ie.host homes with seperate little tours and a self found cheap flight if you know what I mean! It would be grately appreciated! Thank you!