BIAWC - "Liverpool's spending has not matched big clubs", Rafa Benitez December 13 2007 | Source and credit: http://www.themuppet.utvinternet.com/ - All their work, I've just uploaded it for people without Microsoft Excel and made some changes. is a source too
not a 100% accurate , but gives you the idea
there are team names at the bottom , click on it and it shows teamwise spendings .. ie , the cost of every player bought and sold
liverpool have spent more than us .. but the fact is , even if we had spent more , it doesnt count as buying the league
united have been making a LOT more money than any other club in england for years .. success = > money => better player => more success