Reuters reports that the head of Egypt's Salafi party said it might back a moderate Islamist for the presidency:

The hardline Islamist al-Nour party is the second biggest bloc in parliament after the Brotherhood and claims broad influence over Egypt's Salafis, whose puritanical approach to Islamic practice is inspired by Saudi Arabia's Wahhabi ideology.

The surprise Salafi surge to political prominence has unnerved Egypt's ally the United States and neighbour Israel. 

A popular Salafi sheikh was barred last week from Egypt's first free presidential vote and the remaining Islamist candidates are wooing his supporters. Al-Nour did not field its own contender.

An obvious beneficiary might be Mohamed Mursi, the Brotherhood's candidate who has been courting the conservative vote. Mursi's chief Islamist rival is Abdel Moneim Abol Fotouh, who quit the Brotherhood last year and has positioned himself as a moderate, proclaiming support for individual freedoms.