Hey, here are my Z-mods so far. I had a light mod, but my electrical contacts wore out. Restored it back to stock with some black epoxy. Then I had the idea of adding a better antenna to the wireless card! That is still there and works great. My next mod will either be a ram upgrade or bluetooth. If I go blurtooth I want to add an antenna just like my wifi, so it would have 2 antennas like an access point on top.
First version of my wireless mod.
Final version of antenna.