Ben is printing money, average yield is pathetically low....so there are plenty of funds out there hungry to put their money in play for anything decent and a right package wouldn't preclude a size of say, $50 billion being too big given excess market liquidity. Not saying at all that HP is in play, but money from a group of PE funds to do this deal wouldn't be an issue.
A private equity, dufus. You obviously don't understand much about undervalued businesses, do you? Read the Dell news today. HP is a seriously undervalued asset in the public arena. As a private company, either operationalized or sold off in pieces, it's worth $30-35 a share. So a purchase at $25/share would be a steal, and wealthy private investors and banks wouldn't even think twice at $25 a share.