Just been to http://www.travelex.co.uk/
and their rates seem to be at $1.8331, which is 3 cents higher than the trusty M&S rate (currently $1.804). There doesn't seem to be any commissionon that rate either...
Apparently travelex haven't changed their rate yet, it'll probably drop by Monday though.
Ian
www.thomasexchange.com offer better rates than travelex and M&S. Currentley they are offering $1.86. I haven't used them personally, but I may do once the rate reaches $1.90. They are commision free for travellers cheques but you are unable to order with a debit/credit card over the phone. They told me I could pay by personal cheque or deposit my payment into their Bank of Scotland account.
Regards,
Bruce.