These days I usually skip article and jump to comments directly.

My Rasbmc has no problem streaming a ~8gig 1080p from my NAS over ethernet. It only get a bit laggy when you skip around alot on bigger files.

I've got 3 Pi's now, one running Rasbmc, one running RetroPi Emulator and one for testing, playing and programing which will probably become my marine fish tank controller automating the temps, LED lighting and pump control. So much fun.