it's UVA's Ryan Zimmerman

Zimmerman is thought by Nats scouts to be ready to be the team's starting 3rd baseman in 2007. Although his upside isn't as great as some of the other players Washington could have chosen, he was much closer to being ready for major league play, and the Nationals willingly made that trade-off. He's not going to be a superstar, but it is thought he is going to be an important cog of potential championship team. What kind of numbers might he put up once he's got some MLB experience? Scouts seem to point to a .280 average with 20-25 homers and 80+ RBIs. Good but not great numbers. Also, his defense is a MLB ready today.
Remember, Vinny Castilla is signed through next year, and there is no chance that the Nationals would resign the then 40 year old to another contract. I personally have serious doubts about Vinny next year. But team officials are hopeful that as Vinny goes bye-bye, Ryan will be ready. What if he's not? Likely, we'll see Brendan Harris play 3rd for a season, though Harris is better at 2nd.
Speaking of Brendan Harris, this move likely makes him no more than a reserve at the major league level if he remains with the franchise. He's not going to knock Vidro out at 2nd, he can't play short, and Zimmerman is the "can't miss" third baseman now. That's too bad, because Brendan Harris can hit.
So it's a local boy [sort of] drafted first by the Nationals. Hope he realizes that there are many more Terp fans inside the beltway then there are Cavalier fans.