Are there any good bullpens?

The Twins have probably the most frustrating bullpen they have had in some time. Many followers of the team have lamented their inability to close out games big or small. We seem to think this is solely a Minnesota problem, but really, there aren't any, are there? Even the Mets, who went out and added K-Rod and J.J. Putz have had a less than stellar thanks to injuries. Most contenders were looking for bullpen arms at the trade deadline, but there were none to be had.
The Legend of Cecilio Guante (You should check it out some time. It's a lot like the Times, but without the Links and apoplectic about the Mets and not the Twins.) points out that even the World Champion Phillies have moved Jamie Moyer to the bullpen. A soft tossing geriatric in the pen for the team that won the Series? Maybe Bobby Keppel isn't so bad.