If you take a look at the website that Fred mentioned above -
http://www.seamheads.com/NegroLgs/index.php - you'll see that it has a pretty good database, and no, Satchel Paige doesn't have 1000 wins. But there is a drop-down on that site that lists all of the various leagues, and it's fairly easy to see which leagues should be included and which not.
Because of the shorter seasons, not many statistical lists will be affected - pretty much batting average, ERA and the like. Negro Leaguers didn't play enough games to challenge MLB numbers for career or season.