Hi Duncanmcl.
Thank you for your excellent suggestion. We are aware of a large number of both American and European Investors who frequent our site and we will definetely look into developing a currency converter as a possible future upgrade.
As an interim solution, you could use a Hub's Link Library to keep a currency converter handy on the Hub's you visit most often.
You will find a great free edition of an online currency converter by visiting the link below:
http://www.xe.com/ucc/
Thanks again for your thoughts and for your contributions to the AGORACOM Community.
Regards,
AGORACOM