Swiss Francs, Pouds, Euros, Dollars.....? For Swissies try the post bank e-deposit account (it has some strange name) and you should get 1.5%. For pounds try Sainsbury's if you have a UK address if not Alliance and Leicester in the Isle of Man, for dollars I don't know, for Euros try a Livret A in any French bank. If you need a French address but don't have one try Anglo Irish in the IOM/Channel Islands, but check it out first for solidity (is that a word?)
Be careful of the swiss banks - some have a very low limit for withdrawals without notice, e.g. 10,000 with the Caisse D'Epargne in Vevey, 50,000 seems to be the norm, so if you have more you might want to split into more than one bank.
Oh, avoid UBS, since it has dreadful customer service IMHO.
If anybody else know better rates for Euros and CHF do please tell us!