If you had purchased €1000 of Northern Rock shares one year ago it would now be worth €4.95, with HBOS, earlier this week your €1000 would have been worth €16.50, €1000 invested in XL Leisure would now be worth less than €5, but if you bought €1000 worth of Tennents Lager one year ago, drank it all, then took the empty cans to an aluminium re-cycling plant, you would get €214.
So based on the above statistics the best current investment advice is to drink heavily and re-cycle.