It may come as a shock to some, but I don't like Rick Perry. At all. He strikes me as a man who has no mind of his own and who, like Bush Jr., relies almost entirely on the people he surrounds himself with to help him decide on positions and issues. He trusts his advisors before whatever thought happens to jump into his head, and so he is at the mercy of those he picks to advise him. It just happens that many of those people have strong connections to a lot of private sector groups, dubious organizations, and special interests.
Ian Fletcher recently posted an article that very clearly expresses this. It then lists all of the people and organizations that have donated more that $100 K to Perry's campaign. It's quite and eclectic group.