Just completed the game and unlocked insane difficulty setting. :D
I have also got nearly all weapons and upgrades apart from a couple. I'm at rank 16 out of 25 and have 50k in cash to spend.
Download here: http://www.mediafire.com/?nk9dwv3ns5qbmua
Updated link thanks to idlehands. He modded the money for me so there's now $2 billion to spend. :)