While you're right that Tampa hasn't done that much in the past (Burrell is an exception as a higher-priced addition), adding Fielder for 2011 would actually make a lot of sense for them. They're going to have a big-time need at 1B, and are definitely in a win-now position. They can let Prince walk in FA & take a comp pick or two for him. That would fit their m.o. to me, at least. Pena has only been 1.1 WAR so far this season, while Prince sits at 4.0. I realize it's not as simple as plugging in last year's numbers for next year's projections... however, Prince would not only be an elite hitter for the Rays, he'd most likely be a big upgrade for them as well. Fielder's wOBA from May through present-day is over .400, and if he continues his torrid September, he'll post his 3rd season of a .400 or better wOBA (out of 5 full seasons). Pena has done that just once, but I realize he's not TB's only other option.