Re: Cleanup: I'll attack some coins - I owned APEXcoin for 90 blocks
And a warning: most POW coins are not safe! it's easy to cheaply rent enough hashrate to attack a lot of coins with low to medium hashrate. Only the biggest ones are good.
Start with Litecoin Testnet 
If you are right, many honest coins will pay you a tax for your work.
Cheers