I respected from Gunnery to Combat Medic at 50 and it said it was going to be something like 88,700credits. But when I respeced, it said the cost was 0credits (I have respected like 5 times before). I'm not sure if you get one freebee once you respec, but i'm not going to try to waste the money. Hopefully they cap it at like 10k or add a duel spec system. Gotta remember everyone, this game is in it's "beta release phase" as I like to call it, so don't think they aren't doing anything!