Hersh,
A pal of mine has just got a champagne flight for an hour for GBP169 / head.
He got his from balloonsoverthenorth.co.uk. Don't be put off by the name, they are part of a group which covers the whole UK. Have a snout around on Google, that's where he got the name from.
Happy balloonaticing <img src="cool.gif" border="0">