I am relatively inexperienced working with ether, and have enjoyed watching the currency grow. After not having synced for awhile, I was having problems connecting to the node. I figured that I might be able to do this with a fresh install. Unfortunately, I accidentally deleted my keystore, which I didn't realize the significance of until I tried to access my accounts. I was able to recover my empty account key through a hdd file recovery program, but the key to my account holding ether was overwritten by the fresh install of mist. I realize that there's probably no coming back from this, but any tips would be greatly appreciated. If nothing to be done, let my loss show the importance of understanding the fundamentals of ether and creating backups!