Okay as my last reply was killed by the PC resetting itself f%&@!$g Windows.
If in the west end I would reccomend starting the evening off with a drink at the
Absolut Ice Bar for coolness, the whole bar is made of ice so if you can get cooler than that I'd like to know how.
Matsuri is good for Japanese food (St James) looks cool and the Teppan-Yaki cooking is excellent, ask for Tepan Ice (fireball icecream) for desert ^. The next door neighbour
Quaglinos is good, I'm told and cool but I've not managed to go there yet.
Babylon and
The Tenth are a distance away from your chosen hotel area being on Kensington High Street but worth considering, both have excellent views. In the case of the Tenth it is over Kensington Park, Kensington Palace & beyond, I have been recently and the food was very good. Babylon offers vistas over London looking south, as well as the
Roof Gardens below it, which you can walk around before dinner.
Normally I reccomend
Le Gaveroche, because the food is excellent, but it is not cool and is probably beyond your price range.
Wasn't so taken with
Windows the views are stunning but the food so so, they have revamped it into Galvin but someone in the office went recently and wasn't impressed either.