QST can route order through Rolfe & Nolan's RANorder and Trading Technologies FIX Adapter. A partial list of brokers would include: www.iepstein.com www.linngroup.com www.newworldpro.com www.admis.com www.shatkinarbor.com www.velocityfutures.com
Funny you should ask, I just came here to see if anyone has done the legwork on trying to get Ninja to run on Wine in Linux. I'm going to try to get to it in the next month if no one else has already been down this road (hopefully not a dead end road)
About NinjaTrader on Wine. i have it installed but it does'nt seem to want to launch. So trying but not quite there just yet.