I hate to say this, but if you trade intraday, there is just no way in the world you can make top tier money without a top tier set-up. Swing trading is a different story, but in day trading you need to spend serious money on a (or have a firm provide) good set-up.
I don't consider anyone a truly profitable trader unless they make 100K a year trading (no having 10 million in your account and get that via money market doesn't count, neither is someone who make one or two trades a month and hits a few lucky shots with a substantial account). I don't consider anyone a good trader unless they hit 250K. I don't consider anyone a great trader unless they hit 500K. I don't consider anyone a legend unless they break a million.
Before you call yourself doing good, use my measuring stick and see where you stack up. As I said, if you happen to be a swing trader, I can see you getting away with IB/56K modem/One Monitor, but a professional calling others for quotes and stickng with CNBC/E-Trade, I don't think anyone can call himself a professional if he does that.
I don't mean spending $1000 a month on stuff you don't need, but $20 is too little. A DSL costs more than that and if you use IB (since your commission rate suggests it) you probably need to throw in a data feed. I honestly don't believe you can do it for less can't you?