Our church is using Twitter, Myspace, and Facebook, as another avenue to engage not only our members, but also the community at large.
Needless to say, updating all 3 services can (and did!) become challenging quickly.
Again, having a low budget for tools, I resorted to Google, and found HootSuite. What a great service! Even the free version offers more functionality than anyone except a die hard social media guru will even care about.