Four days in London

Try to get in for a performance at St. Martin in the Fields (or something close to that).

Check out the Royal Shakespear Company at the Barbican.

London is a world of opportunity. You can hardly go wrong...

Charlie

Another food suggestion: Sofra, Turkish, near covent garden. Good food at great prices ... and it gets absolutely packed so get there before 6.30pm. I'm sorry, but I forgot the street it's on.
As a brit living in the US I think that restaurants tend to be more uniform in the US. Restaurants in England can be very bad, particularly in London, but equally, they can be very good, and not too expensive. However if you "chance it" in London, I'd give you less than 50% odds of getting a great meal, so go for personal recommendations.
Musically .. I'm sorry to say that not much seems to be coming out of the UK these days, apart from Radiohead and a few others. I'd have to say that the US would be a better bet for new bands. Just IMHO. Oh, and the CDs are horribly overpriced as well.
I still love London .. for me the most exciting city in the world, and one of the most accessible.

Mgottlieb,
There's no argument: Thatcher is (I wish I could say "was") the antichrist.

Cardinal: Thanks for the info. And here I thought she came back as Hillary!

LSO/Davis direct-marketed CDs for 4.99L! I bought a bunch in Scotland in July. The Berlioz Symphonie Fantastique is that indeed! There's lots of buzz about his Elgars, but I can't get into them. Nice to see individual orchestras taking production into their own hands. High-price CDs are a whopping 15-17L ($23-26), so at $8 these are great!