Wouldn't touch Swissy for at least a month until things settle. Besides margins on CHF pairs have been increased (at least with most brokers) and there's always the possibility of fx interventions from SNB after the mess they created.
Thanks all for your comments. This event is perhaps the 'event of the year' in our forex world. The last hope for Alpari-UK clients (like me) is the guarantee of segregated accounts this company prides themselves in adhering to.