A batch upload generator for HootSuite
Being a programmer, I wrote a small utility to automate the process a bit: it will take a database of message texts, apply a random spin-text to the messages, and then randomly slot them into a publishing schedule you set up.
If this would meet your needs, you're free to use the program: I don't charge for it nor does it have advertising or any other monetization. It's not quite that valuable...
You can see a description of it on my website at HootSchedule -- Generate HootSuite Batch Publishing Files « The Social Seer
I hope you find it useful.