$128.65
The exchange rate fluctuates, but as of March 14, 2011, one British Pound equals $1.61. In January of 2009, one Pound equaled $1.39.
$23.32
£12.8
As of 1/28/2010 the conversion rate is 1 American dollar to 0.619387 British pounds. So 499 USD x 0.619387 = 309.1 approximately. The conversion rate could and likely will change a little.