Political Moneyline has the details.
[link|http://www.tray.com/fecinfo/|PoliticalMoneyline] has each candidate's report, and an [link|http://www.politicalmoneyline.com/cgi-win/pml1_sql_PRESIDENTIAL2008.exe?DoFn=2008|overall summary of dollars] for the major presidential candidates.
Clinton had an average of $1610.22 per individual, while Edwards had an average of $1229.47 per individual, and Obama had an average of $1267.20 per individual. That strikes me as extraordinarily high, for all of them - especially this early in the process. Since Obama is claiming 100,000 on-line donors but only lists 20,284 total in the form, presumably small contributions are aggregated somehow.