I just want to confirm that the changes in the cryptsy wrapper by @woolly_sammoth solved the issue of bots not being able to place orders despite sufficient funds.
My bot runs almost flawless for more than 24 hours.
Flawless in this case means, there are still log messages like
2015/09/28-20:30:36 ERROR: unable to place bid btc order of "X" nbt at 0.00415489 on cryptsy: Insufficient BTC in account to complete this order.
but the bot automatically and reliably recovers from that inability.
Well done, @woolly_sammoth!