Consider some custom ROMM's
Bumblee and Harmonious are aailable but are not actively being support. The IHO project is supported and running at full speed with an Unofficial Cyanogenmod port.
After that. Over Clock. The IHO has an overclockering built into it
Get some root apps.
Titanium backup for your apps while you flash a new ROM
RootExplorer or something similar helps to manage files
Adfree makes your android while... Ad free
Cashemate helps. The OV has low memory so an app that can clear cache once in a while can go a long way
After all of that the very next thing o do while rooted is to enjoy.