Hi, is there a solution which can update say a 1000 quotes per second, based on the last bid/ask. For the last months I've been coding my own program, because I didn't see an alternative. Now I'm running into some performance barriers, through my custom IB application. I even consider moving to Tradestation, although I'm not a big fan. Ninjatrader, Amikbroker, etc. seem to be fine for midfrequency trading, but my impression is that they can't compete for higher frequencies. Currently I'm using IB and DTN as a feed. I might be willing to pay several hundred dollars a month, but not much more than that. I'm thinking about a 'professional' solutions such as RTS and ORC.