The 2009 MLS Salary list (preliminary at least) is out (Ives Galarcep and others have the link). Once again there is a massive discrepancy between the bottom and the top.
I was listening to the World Soccer Daily Podcast and they had Sean Wheelock on as a guest and one of the things Wheelock talked about was the salary structure. He noted that in the NFL (a league with a hard salary cap like MLS), there was not only a salary cap, but a real salary floor, one with a minimum salary that guaranteed a decent wage.
There are still too many player making part time salaries for a full time job. Until MLS can address the minimum salary, the quality of the football will suffer.