If you're in Wellington during November the Retcon event looks like something worth checking out! Classic 80s and 90s games from the PC, Megadrive, SNES, Dreamcast, Gameboy, Master System and Arcade will be featured as well as art on sale from the Drawfest NZ community.
It's hosted by RetroActiveNZ who run a site / blog on the history of games, according to their About page. Anything retro arcade is a good thing in my book and if November wasn't such a busy month for me I'd be down there on the 19th with bells on!
Ret-con is 'The Gamer's Convention' and is scheduled for Saturday the 19th of November in Wellington Central Library on the Level 1 Mezzanine. It's free entry all day for all ages from 10:30am to 4:00pm.