I purchased a Logitech h250 headset with mic this past weekend at Office Max. It is one computer add-on that I never really thought about purchasing. The headset is a little tight but there is a wonderful side benefit to having this item: it's like I have a new phone. My computer, the headset with mic, and Google Voice are all that is needed to make free calls through the internet.
To get it to work, I have to go to Gmail in the browser. There is a small phone icon in the chat to the left. I simply click the phone icon and a dial pad shows up on the right. So far, I have called two people and they both said I sounded just fine. No delay and no flutter. No charge either, but I will keep my eyes open for that. I think I had to sign up for Google+ to enable the dialing to work. Anyway, it is pretty cool to think that I can dial out from my computer. Now I need to figure out how I can receive calls through Google Voice on my computer. That will be an experiment for later.
I love little upgrades and discoveries like this one. There is something very satisfying about finding something useful like this.