Oanda, FXDD, GFTforex and FX Solutions, to name just 4, all let you place and manage trades directly from the chart. I believe there are many more.
I have an account with interbankfx and they have a 2 pip spread. I trade off of their charts buts its not as intuitive as other brokers interface. In fact, I make quite a few mistakes every week when trading through interbank but I never have a problem with my oanda or cms-forex interface. go figure...
sorry what's my point? my point is the spread, however tight isn't the only consideration to make when choosing a short-term trading broker....