I need an app/script that will allow me to manage 200+ different twitter accounts.

Here are the features I came up with:

• Add Accounts – I need to be able to add accounts some way in account:password format. Some sort of copy and paste box.
• Dupe Checking – When adding new accounts the app should always check for dupe accounts so that I don’t get double accounts added somehow.
• Proxy Support – I need to be able to have a place that allows me to edit/add/remove proxies so that I can scrape fresh proxies when I need to login to accounts.
• Alive Checker – There needs to be an option that will allow me to tell the app to go thru the entire list and check for suspended accounts and then give me the option to delete the dead ones. Not sure how you want to do it but I think all suspended accounts do the same thing and redirect like this: http://twitter.com/suspended
• Re-tweeting – I need to be able to select account(s) and have them re-tweet a given tweet. So say I select 20 twitter accounts I would be able to put in the url of a tweet that I want those 20 twitters to re-tweet. Then it will login (with proxies) to each account and do a re-tweet.
• Tweeting – I’d like to be able to input a URL and then select a given account(s) and have them tweet it. Again, they will all login with proxies.
• Following – I’d like to be able to select an account(s) and have it follow a given twitter account.
• RSS Feeds – I need to be able to give the app an RSS feed and then select an account(s) and have it feed those accounts X number of times every X hours it will update with X number of feeds. If you need a good example of this, I am currently using twitterfeed.com to do this. Only bad thing with them is they don’t support proxies so it gets kind of risky logging in to so many accounts form the same IP.
• Profiles – I need to be able to change account pictures, info, url, and theme. Ideally the theme will just be chosen randomly. The URL will be able to be input by me. The profile picture should pull form a random pool of profile pictures. Not sure how to deal with the profile picture issue, however you think is best.

One last thing. As for the proxies I am not sure if I wanna go with private proxies or free public ones. If I decide to go with private proxies I will need the app to assign a proxy to an account. In other words if I have 400 twitter accounts and 200 private proxies, each proxy should only login to two accounts and not mix and match as it would allow twitter admins to see a footprint and ban my network.