Moving Mailboxes in Exchange 2003

Hi

We are running Exchange 2003 SP2 across multiple server.s

I need to move about 15 mailboxes from ServerA to ServerB, within the same Admin Group.

Am I correct in thinking that the correct method of doing this is;

a) In ADUC, highlight (CTRL-shift) the mailboxes and select Move Mailbox.

b) Move the mailboxes to the relevant Store (they are all going to the same Server/StorageGroup/Store)

Couple of questions;

a) They are currently located on different stores but - as I mentioned - going to the same one. Does this make a difference?

b) Any logs i should check after the move?

c) What codes in the log should I look out for?

d) Will users experience an outage in their Outlook?

e) How long will the change take to replicate across?

Anything else I've missed?

Urgent so max points.