If you are thinking of car hire , use National as they are half the price of Avis and most other hire firms. http://www.nationalcar.co.uk/
Cheap accomadation that wont break the bank try travel lodge or premier inns they are much of the same.
Most of the other guy's have mentioned some of the best places to visit in London. But if you get chance visit the Tower of London, and get on a tour by one of the Yoeman. The clip is of a guy called Bill Callahan, who's a real star, have a look atsome of his other clips. All the best, Paul.
