I spent about an hour on Mechanical Turk today. I submitted a total of 348 A9 image adjustment HITs from Tempe, AZ. I timed myself at my peak and in 16 minutes I completed 106 HITs. If every single one of those were accepted, I would earn approximately $11.93 an hour. If my 7.5% rate of rejection stayed about the same, I could earn about $11 an hour. I used to have a job at Dairy Queen where I earned $6.00 an hour. I can almost earn double with mturk.
As of now it seems very possible to make a steady source of income with Mechanical Turk, and in a week or so I might be able to make my first stock purchase. Again, suggestions of online trading companies are definitely welcomed.