I'm currently looking at forex interbank trading, and am wondering what I could do to lower commissions whilst being able to do some volume. IB does look promising, but I was hoping to find something with lower commissions than .2 pips which has real liquidity (not the bucketshops). From what I can gather from HotSpotFX, that's .3 pips. As for EBS, the best rates are probably from negotiating directly with a prime bank, set up an LLC and trade through them? Volume-wise I'm thinking between 50m-100m USD per day. My (perhaps too) quick look at the big EURUSD-contract on Globex made it seem a bit too illiquid for me, but then again I was just looking at it for five minutes during European trading hours. The ideal thing I guess would be to pay mainly for settlement costs (and margin).