Having bitcoin classified as property rather than currency is the best possible scenario. The capital gains tax rate is 0% for most people. 0%... hard to beat that.
Ya, but you gotta have enough BTC to pay your living expenses so that you stay in the lower two tax brackets....and wish to part with them.
I've not done my taxes yet, but I'm anticipating paying a noticeable amount of tax for 2013 because I had the mis-fortune of earning money (hard to avoid.) In 2014 I do intent to fall into the lower brackets for earned income and enjoy a fairly healthy influx of capital for fun stuff. At least if the price does another spike...else I'll HODL and live with what I've pulled already this year.
(Std disclaimer: Seek qualified tax advice and not this posting on a forum.)---
As an aside, I feel that the U.S. has basically saved Bitcoin with this ruling. I've long relied on the world's governments to 'save' Bitcoin by making it illegal, but this is even better. Bitcoin would change to something quite different if it had to support the load of a large exchange economy. If it remains a vehicle for speculation (which happens off-chain) and moving relatively large blocks of value around, it could remain similar to it's original implementation in terms of being peer-2-peer.