OK.
I've never created a multiple destination transaction before, is it simply a matter of adding another line on the Send tab in the wallet?
All fine with me.
Please send to 1H1mebDKhwxbvHvc5oQ4eEMbGtXAC4aTsx
To keep it simple this is the same address I used for the GB1 payments.
Sent: 1a76246f81e42a1c4c20ad5b28301d0f1c84b88e1c01ad6e73b5e0bc8ebe2d2b
If you're using Bitcoin QT wallet use the "Add Recipient" button. If you're using Blockchain.info use the "Custom Send" option and click the "+" to add a second destination/amount. Any other wallet will have a similar option.