I'm rather liking using my Bluetooth headphones. The lack of a cable is actually quite nice. It sucks having to charge them though, and sometimes the Bluetooth connection drops when there's no audio for a period. I don't know if that is an issue with the headphones or an issue with Windows 7's bluetooth driver.

I'd happily upgrade to some better ones at some point, but I don't think I'd get one without an optional cable as not everything has Bluetooth.

As for what we can see... I'm currently using a CRT monitor at 60Hz and whilst the flicker is definitely perceivable, I don't really notice it. I notice the convergence and focus issues more as I think this particular monitor has seen better days.