Great news from pollingreport:
http://www.pollingreport.com/cong2004.htm
Time/CNN Poll conducted by Harris Interactive. May 12-13, 2004. N=563 likely voters nationwide. MoE ± 4.1.
"If the election for Congress were being held today, do you think you would vote for the Democratic candidate for Congress in your district, or for the Republican candidate?" Options rotated:
Republican: 40
Democrat: 53
Other: 2
Not sure: 5