My first mail check of the morning yielded me an unusual amount of emails, 48 of which were replies to spams for cheap viagra that i sent out the night before. All of the replies came from friends and co-workers, leading me to believe my mail had been comprimised. I have all of my accounts routing through Gmail, and do not check them on with a non-web based client. I'm pretty sure the spammers sent one of these messages to everyone in my contact list.
A password change and some digging later, I came up with 2 things that should be shared.
Thing One: a tool exists that allows the user to very easily access non encrypted Gmail accounts.
you can read about it here.Thing two: Gmail has a setting that forces it to always use a secure connection. in your gmail settings, choosing "Always use https" will thwart this tool. This setting lives at the bottom of your prefs page.

yer welcome