what about making a new account on the block chain site I keep hearing about
then transferring all my funds to it
would it be more secure then in my VPS running the core ?
No. That would be less secure because you are trusting an online service to provide you both a consistent api and to hold onto your Bitcoin. You could wait until the next release of Bitcoin Core, which should be out in a month or two, which will only require you to make one backup of your wallet.
Or you could use Electrum which also only requires you to make one backup of the wallet. In this way, if your server were to unexpectedly go down, you still have the wallet backup locally so you can restore the wallet and be able to spend the Bitcoin.
If you decide to use Electrum and your site is only accepting payments (never sending), then I highly recommend that you actually use a watching only wallet on the server. This means that you create the wallet on your computer, then from that wallet you create a watching only version. Then you use that watching only version on the server. A watching only wallet doesn't have private keys, but it can still give out addresses and monitor those addresses. This protects you from a hacker breaking into your server and stealing the Bitcoin because the private keys required to spend the Bitcoin are not on the server.
