The Eur/Usd is all I trade as well and I do so through Oanda. I also have an account with Efx/Mb but they proved to be way too costly for my trading style which is many trades a day. I don't think you can beat Oanda if the E/U is what you want to trade.
Appreciate the input thus far. As one person asked, I'll be putting about 10k into an account, and I place, on average, 1 trade every other day (obviously sometimes more frequently and sometimes less frequently). Thanks again.