I did look at exetel and one other one I can't remember, and they had similar pricing (all with ethernet-over-copper). We're going with Internode because their support is a known good.

My experience with TPG-by-friend is that they're wonderful until you need support. My personal experienc with Optus is that they obscure their help services, they have no tools for techies in small-medium businesses, they obscure their billing, they outsource support to terrible staff (last guy I had refused to even say anything), they have intentionally misleading marketing... and ugly corporate colours :)

I'm also not sure that fibre comes to the building (we're in an old building in the CBD) and assumed a high connection charge if it didn't... and we're only a dozen or so in the office. It's just that we have a couple of video editors, and when they upload, everyone moans...