Best Su.pr for Twitter Solution….?

Hi there, looks like a combination of plugins –

http://wordpress.org/extend/plugins/twitter-tools/faq/ &
http://wordpress.org/extend/plugins/twitter-tools-supr-link/

Could be used to send my posts to twitter with su.pr URLs in them.

1) Has anyone had positive experience with this?
2) I would rather avoid more plugins if possible and just send my RSS feed to twitter using twitterfeed or something, but I REALLY want those su.pr URLs, so… any other solutions out there?

Thanks!