If you don't have £200 or aren't the first person to offer, please don't let that stop you from donating even small amounts to British Red Cross, Medecines San Frontieres or any of the other good charities trying to help out.
Edit: We have a donor! Big thanks to Sean Jones for stepping forward!
He also flagged a great project set up called Billable Hour, where a group of lawyers set up a donation page and invited professionals to donate a sum equivalent to a single billable hour of their time. They raised over £200,000 for Save the Children (donation link here)!