For now I will suggest to keep holding our Bitoins.. did you see the price is gradually increase, slow but its increasing.
And anytime it can jump fast so just keep watching on bitstamp to know the flunctuate, for no we have running price of $600 per bitcoins nearly to $700...
I hold most of my coins at the moment. As a miner, I have to use some coins to pay for my mining cost.