See this report by the Center for Public Integrity. From their press release:

Sen. John F. Kerry may have a $24.8 million advantage over President George W. Bush in pursuing any recounts that result from Tuesday’s election, according to the campaigns’ most recent financial filings.
Under Federal Election Commission rules, both candidates are allowed to use remaining funds from their primary election committees to conduct recount activities, which in Kerry’s case amounts to just under $45 million. That compares to just more than $16 million left over in the Bush/Cheney primary election committee’s coffers.