while on the topic, is there anyway to add more than 2000 keywords at once?
I don't know about increasing limits but if you run out, just get another account.
Write a program that uses the api to do something like this or write a custom program that uses web posts and gets to mimick actual browsing and then automate that.
In addition...........They don't care if you open multiple accounts. They even have an account chaining feature I saw somewhere.