My peas are in with a handful of roosters (the naughty ones that attack the little kids that come by to visit, so condemning themselves to stew) and when the roosters start getting into it with each other or picking on one another, the two peacocks and my alpha peahen are there in a *second* face kicking them apart and standing over them until the roosters decide fighting isn't a good idea at the moment. The peas are never aggressive otherwise- they've not come after people or each other, or any other bird that is being peaceful. I accidentally locked a cat in with them overnight a few nights ago, and she came sauntering out of their shed in the morning completely unharmed. Little kids can (and do) hand feed them no problem.
Glad to hear your got your chicks! I'm sure they will be great for you :)