As Bush Ends Money Drive, Kerry Goes On
Pres Bush has held his last planned fund-raising event for his re-election campaign, having collected almost twice as much money as he did in 2000; Sen John Kerry is pushing ahead with what will be one of busiest fund-raising months of his campaign; is still personally calling donors and attending major events in dozens of cities as he seeks to compete with Bush's expansive financial network; Bush raised over $180 million through March, exceeding his goal by $10 million; Kerry, who has raised $79 million, is taking advantage of outpouring of Democratic support after emerging as his party's presumptive nominee; PricewaterhouseCoopers accounting firm has donated $607,000 to Bush campaign; Mintz, Levin, Cohn, Ferris, Glovsky & Popeo law firm has donated $243,346 to Kerry campaign; other top donors to Bush and Kerry campaigns noted (M)