As far as hitters go, I buy into:
McLouth - Could be a bargain-basement version of Curtis Granderson
Reynolds - The average won't be there and neither will the consistency, but he's a raw 30 HR threat
C. Jackson - Don't see him crossing the 30 HR threshold, but a solid 3rd-tier 1B
Crede - Health is a question with him and apparently there's no rush to bring up Josh Fields, but I'd still want to sell him
Church - Has always been a deep OF sleeper, but has the lineup in front of him to post better numbers than his career average
Votto - Capitalizing on the AB's when Dusty gives him the opportunity
Kotchman - Same boat as Jackson and with a full-time role, he's a good option in deeper leagues
Xavier Nady is an early sell-high each year it seems, Keppinger is raking but don't expect it to last even if he holds a starting role when Alex Gonzalez returns, and I'd look to sell on Ludwick and Schumaker.
Ervin Santana - Most folks know about his pure skillset and so far, he's lowered his K/BB which could be a promising progression to an '06-like year.
Cliff Lee - On a full bill of health, he could be as good as 2005, but expect some regression as the year boils down - sell.
Owings - Has been the beneficiary of a few quality starts, but has upped his K rate with a little more movement in his offspeed offerings. Still has a penchant for the HR ball, but he can reasonably be a 3.75-4.00 ERA guy with a fairly good WHIP if he keeps on the steady track.
I'd look to move on Joe Saunders even though his command has been very good and he's getting the DP ball quite often, but won't blow anyone away with a healthy K rate, might be a bit predictable the next time around. Gavin Floyd was OK last time out, but I'd look to sell him based off his favorable history vs. Detroit. Floyd has good post-hype upside, but he's still a flyball pitcher pitching most of his games in a park that tends to be a HR launchpad.