Right now, there doesn't seem to be huge pressure from Eurozone governments for the UK to chip in - although the Germanfinanceministry is angling to find a way to hook Britain into the rescue.
Citing sources in the GermanFinanceMinistry, Der Spiegel reported that Finance Minister Wolfgang Schaulbe was attending the meeting with an internal report to stress the massively negative repercussions a Greek exit from the European Monetary Union could have.