I would suggest you to use TWITTERDUB which is more than nice software and has the ability to run thousands of twitter accounts for your marketing purpose on twitter. You just need accounts and proxys. Import them on TWITTERDUB and do whatever action. For example: Like, follow, mass follow, comment, mention, video upload, image upload. Almost everything can be done via TWITTERDUB. I used it since last 3 years and the developer updates it regularly. I don't like to pay monthly and this program comes with one time fee! Go for it.