To decrypt MD5 hashes I could use this: http://www.md5decrypter.co.uk/ it currently contains over 8.7 billion cracked MD5 hashes.
Else I need to buy an expensive nVidia graphics card to brute force MD5 hashes with Cuda cores lol.
And yes, that's epic fast. With an outdated graphics card such as the GTS250, it's possible to crack 420 million MD5 hashes each second.
But I don't want to get into trouble. ;l