I like to use a paper wallet.they sell on Ebay for $5 a creditcard like cold storage wallet.the private key is never used online untill your ready to spend.I just use it for coins I will hold long term.
errr... You mean someone else has had 'your' private key? And then you're putting money in an account that someone else has had (still has) access too...? Sure nothing could go wrong there O.o