I've been experiencing some slow periods and occasional downtime with my cable broadband service during market hours. I've heard that different forms of dsl are more stable and that depending on the type of service the actual speed loss will not be too severe. What type of data connection do most traders use? (cable, dsl, t1, t3) And why? How fast of a connection does one need to intraday swing trade (both upload and download)? Thanks for the info, Jeff.