Gotta be Beltre. Having to use a second rounder on him makes him a higher risk than most of the guys listed here, especially when you look at the numbers he'd put up before last year.
On the other hand, .334-48-139 in the middle of the second round is quite a reward...
In response to Luis Gonzalez he really doesn't belong in the category of "high risk, high reward." More like "no risk, above-average award." The fact of the matter is he's 37, coming off tommy john surgery from last August and is not even guarunteed to start the season on time let alone play everday due to the injury. I agree he could be a steal if he checks out healthy, but do you really expect anyone to take him before round 15 of a standard draft? Even if he's healthy, he's well past his prime.
As far as Drew, he will be taken in the first 7/8 rounds of almost any draft. With one season of 500 at bats in 6 seasons and almost no protection in L.A.'s lineup he is almost destined to disappoint.
Both are perfectably capable of K'ing 250+ and winning 20 games as well as throwing only 15 games due to injury.
Low-risk, No-reward:
--Ryan Klesko (steroid guy) -- though I don't think anyone cares because he was nothing more than very mediocre to begin with.
--Ozzie Canseco -- I'd feel embarrassed to say I took steroids....and still sucked.
It looks to me that there are several MI's who could fall into this thread. Reyes has been mentioned and K Matsui could be another with big up-side. Berroa could rebound from a terrible sophomore season, but maybe not. Bobby Crosby is another Berroa.
Brian Roberts will score runs for the O's, but either he had an injury the 2nd half of last season or there was another problem. If he has a start like last year's, there's lots of reward there.
Ordonez scares the hell out of me, but he could be awsome. Prior should rebound nicely.