Technically that would be considered a hot wallet.  So it's not the most secure with it being online.

Cold storage is always the most secure.  Assuming it's done properly.

armory will give you paper wallets to print, and has a good walk through to make a cold storage wallet

I am thinking the same way and it is the route I am taking. Fresh install of Linux on a dedicated machine, installed BTC Core and let it sycn up block chain. While it was syncing added firewall rules via IP Tables just to allow what is needed for basic functionality of the BTC client. I will only boot and sync when needed, and have passphrase protected the wallet. I will also keep copies of the encrypted wallet.dat file elsewhere for safekeeping.

If I begin to accumulate enough BTC where I think one wallet is too risky, I can always do the same with multiple machines. I already plan to keep a small amount of day-to-day BTC on my main desktop, so the dedicate box is just for longer term storage and will only need to be fired up on occasion. I suppose I could take it a step further and keep it offline like the guide, but I like the idea to just be able to send the BTC to my "spending" wallet when I have the need, or to easily fire it up and create additional receiving addresses when the need arises.

its a really great tutorial it was interesting to read i will definitely check it out when i will have some time and create a wallet even though i have a paper wallet lets hope it will be unhackable

Is that something that has happened in the past?

Yeah I agree paper wallet is the one safest method to save your bitcoins, You could try hardware or cold storage as well, Which is very much safe. Normally wallet security seems like one of the more major problems for the general population to use Bitcoins, especially considering the unability to recover stolen Bitcoins. It seems like Credit Card Fraud squared, if Bitcoins were to become really popular.

Not trying to be negative here, but this is really not the best advice to give.
Unless you are using a solution like greenaddress that allows you to be in control of the private key then are website wallet solutions almost a sure way to loose your coins.

You only own bitcoins if you and only you are in control of the private key.

In any case, I consider it as the most fundamental skill for a bitcoiner to learn how to secure his own private keys.

just use phaseprase or 2fa in online wallet

nice job.thanks.