From these suggestions, I am planning on extending my trip to 10 days. I plan on traveling back to this area at some point within the next few years, so I don't need to hit every spot now, just the "wish lists" areas. I am considering spending the 10 days in either Scotland or England (not both), but I really want to go to Edinburgh AND see London while I'm over in Europe. Decisions, decisions!!
I have traveled to different countries in Europe before, but never without a travel agency - so trying to go out on my own this time. The problem is, my two traveling companions have different preferences when traveling (one wants to be frugal and the other doesn't care about spending a lot of money), so I'm trying to accommodate for both.
From your suggestions, I will probably condense my cities visited to four or five. I will fly into Edinburgh for two days and possibly another town in Scotland for one or two. Then, possibly make a stop for a few hours in Liverpool? (Would anyone highly recommend staying in this town for a night?), and then London for 4-5 days.
Thank you to everyone for your suggestions! There's just so much to see, any amount of time spent in Europe is not enough :)