I would go with these 5 for sure. After that it depends on what you like. Pena would give the most power which I think you need most, but hurts the BA. Berkman should put up decent numbers with a better BA than Pena but not enough power to go with your other keepers. I would probably go with Pena, as your other guys are not big power bats and Wright/Crawford should help your BA you lose with Pena.
I have had enough of BJ Upton so I do not want to even consider him right now. Yeah he is due...been hearing that for 2 years running and he was just AWFUL last season. At least my other stiffs mostly sank me because of injury. Upton just plain stunk last year and hat followed a pretty lousy 2008.
How about Mo, Berkman and Vlad? All three are better options than Pena or Upton for that matter imo and not keepinh Upton helps EVERY category save for SBs.
A lot of people still seem to be BJ Upton believers...to the point of choosing him as a keeper in a 6 keeper, 10 team league. I would point out that with 60 players being kept, I would venture to guess this guy is not going to get picked until the effective 10th or 11th round, so why keep him in the top 6 when Rivera will surely go ahead of him...as likely will Berkman and Pena.
I know keeping closers is not great, but when you can lock in a top flight closer as opposed to a an OF with SBs and an otherwise empty stat sheet, I think the top closer has far more value. Youcan always trade trade him later. Maybe I am wrong and someone else wants to drink the Upton kool-aid again an pay for potential that has not arrived to the point of picking him in the 60's or 70', but I do not see why at this point as there are some quality players around in that area of the draft that are safer bets and you can likely pick him in round 9 if you really believed in the guy.