I hate to pay for saves in a trade, especially before the season has begun. You do have the depth to make up for this, and KRod and Paps would be crazy, but I lean towards no. The other reason is that I wouldn't be happy with Hafner @ util, so you would have to plug two of those you mentioned into your line-up, IMO.
The only way I consider this, is if you can work some deal out for a better util guy. Though Ian Stewart and Aaron Hill are great 'sleepers', I would like to have a more stable option.
Help with mine?viewtopic.php?t=375305