I had a good one, but it was stolen (while chained up, at a mall, in front of a security guard).

I have a kit to build a new one, still deciding which of two frames to use. Either way I'll make sure it looks DIY and unsaleable!

Re overclocking? You mean removing current / wattage limits? We have strict limits (200W) here in legislation, but everyone rides over-current, cops wouldn't have a clue how to check and don't really care unless you annoy them somehow.