re: WiFi, it connects fine, but it can't remember to re-connect when waking up or rebooting, despite the fact my network is already known.

re: Sound, I'm pretty sure it's using HDMI audio as it only works when hooked up via HDMI, not VGA. It appears as the internal speaker though, so I'm not really sure. I've already done quick inserts a bunch of times. OS X will state no outputs, at all. Worst case, I can look at the interconnect if I ever do upgrade it, or get a USB DAC.