Donny,

Thanks for referring me to the Technote message board. I do somehow remember reading about the SX3 here now that you jogged my memory. Here's is the direct link to Keysoft Services's HD-SX6 vs. HD-SX3 comparison page for anyone else who is interested:
http://www.keysoftservice.ch/HD-SX6-3_comparison.htm

I think the HD-SX6 is the "much better" choice (though it does cost more), because only the HD-SX6 allows you to connect & backup the SX6 hard drive data to your PC (This is an essential feature to me!). Also, only the HD-SX6 contains the very useful "File Load Script" feature which allows you to create custom song sets which will load specified styles/songs in succession. Great for specific show sets and medleys.

- Scott