Popping items back and over between two dropdowns

The problem I'm tryng to solve is where I have 2 String[]s and I want all the values in them to be displayed to the user in 2 seperate dropdowns. The user then can select one or more values in either dropdown and "send" these selected values over to the other list with a button click.
Currently I'm using 2 JLists with their models populated from the 2 String[]s and using actionPerformed to add/remove values from one to the other but I can't hepl but feel that there is a better way to do this as it's a fairly common GUI task that a user might want to do.
I've tried using comboBoxs but this seemed very complex.
Also performance is important and these dropdowns may contain upto 1000 items.
Does anyone have any example of an implementation of this type of functionality? ( They do not have to be dropdowns, Scrollpanes with JTables was another solution I thought about )
Thanks ...James

Welcome to the discussions!
+With no settings changes, can a Time Capsule be moved back and forth between houses and just get plugged in and continue working without any hiccups?+
The Time Capsule will connect to the internet fine and create a wireless network.
If your friend is planning to use Time Machine for backups to his MacBook Pro, he'll need to manually point backups to the Time Capsule each time a location change is made.
System Preferences > Time Machine > Select Disk > Use for Backups
In theory, it's possible to backup using Mobile Me, but you're talking about uploading a lot of data, and this is much slower than downloading on almost all ISPs. I haven't used Mobile Me, so can't offer much more about that.

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