When TA is in harness with support and resistance it is indeed potent. If you want mote than TA and S/R offer you are looking for a free lunch and will, in all liklihood, miss both lunch and dinner.
Ive been trading about a year now, and have gone from all kinds of TA/Trendlines/fibs/MA's/pivots. But I have found out over time that TA does work, but u need to combine it with many other factors. Im primarly a daytrader/scalper, when all of the technicals line up correctly, and there is some sort of support to go along with it...thats when you lay on the risk. Over the last 3 months I have found myself taking fewer and fewer trades per week, and my PNL has gone way up compared to before, and Im sitting in front of the monitor reading a book 80% of the time! lol