According to the FEC:

685.3 All Candidates
377.9 Democrats
307.4 Republicans

138.2 Obama
134.5 Clinton
105.1 Romney
64.0 Giuliani
53.7 McCain

47.8 Edwards
32.5 Paul
24.7 Richardson
23.6 Thompson, F.
16.6 Dodd

13.0 Huckabee
11.5 Biden
6.2 Tancredo
4.3 Kucinich
4.2 Brownback

2.5 Hunter
1.2 Thompson, T.
1.1 Cox
0.4 Gilmore
0.4 Gravel

UPDATE from JB: “A small correction: remember that Romney loaned himself $42.3 million, which makes his actual fundraising total $62.8 million, which also lowers the Republican total to $265.1. Makes the fundraising picture for Republicans look a lot more bleak, doesn’t it?”