Most brokes support algos, but each one has its own list and they would apply the name "algo" to quite different things. What algos you are looking at, exactly?
How much do you have to pay to use static DOM with TradeStation? I was only able to find numbers for NT http://www.ninjatrader.com/webnew/trading_technologies_settlement.htm
Hm... I am carefully reading SPAN description on CME site http://www.cme.com/clearing/rmspan/span/components.html and I do not see where it says that having ES option can reduce your performance bond for ER2. I am missing anything?