Also, consider that these wallets and their operators are MUCH more likely to be the target of hackers and ddos attacks than you are.
Just get a very strong, hard password (20 or more letters+numbers+symbols), and back up the wallet to 3-4 USB flash drives.
Maybe rename the wallet.dat file and place it amongst a bunch of other useless, similarly named files.
Keep one drive in safety deposit box, one at home, one with a friend, maybe one in your car.
And make sure you have a clean, new install of your OS when you back it up and make your password.
less than a couple hundred i tend to use very strong passphrases for everything anyway, so that's not going to be an issue. Just like to keep my crypto-hoards spread out across multiple containers so that if one is compromised (hasn't happened yet, but ya never know), the others will/should be safe.
Thx for the tips.