As someone considered a tech authority, I am often asked by family and friends what kind of gear to buy. Short of listing my phone number here and having you call me for shopping advice, here's the gear I've actually shelled out money for, and some buying advice.
Like the pizza box says, I've tried the rest, now try the best. No one makes a better Bluetooth headset – best sounding, longest range – than Plantronics (good enough for NASA, good enough for me), and my own Plantronics is the Discovery 975 ($130). I don't use the 975 with my iPhone, though – I use Etymotic's custom hf3 wired stereo ear buds (I don't like Bluetooth stereo). I use my 975 with the Panasonic KX-TG931T two-line DECT 6.0 landline phone. Buying advice: Plantronics, which is celebrating its 50th anniversary this week.