You might look at amibroker and cooltrade.
I've toyed with wealthlab and I hate that's tied to Fidelities dog of plateform ATP.
Wealthlab has features but I see WL folks moving to amibroker. But amibroker just has a mail list for support where WL has a decent portal and search.
Check out cooltrade. That's my next todo.
Please post back here your findings.
good luck. curt