Most of the reactions to the new FISA amendment that I've heard are rather blase. Usually it's something along the lines of "well, if you don't want to get caught don't break the law". Most of us small fish have a hard time imagining that the government is going to be concerned with our daily comings and goings, and this is a pretty rational argument. The chances are that Bush and company don't really care about you and have no real motivation to spy on you.
On a personal level I agree with this assessment, I don't particularly care if the government does listen to my calls; my secret tomato sauce recipe isn't that important to me, but the real killer here, and the reason we should all be worried, has very little to do with our personal calls, and a lot more to do with our representatives' political calls.
Almost every shady, weasley, disgusting assault on our constitution made by Rove, Bush, and Cheney that we know about so far has been geared toward one objective: creating a "permanent" republican majority. We all know they fired 8 or 9 perfectly competent U.S. Attorneys because they wouldn't engage in the malicious prosecution of rivals to republican power. We know they've completely politicized the civil rights wing of the justice department mostly to tamper with minority votes. Hell, this tradition goes all the way back to watergate, when an entire republican administration went down due to a botched attempt to spy on the democratic party, and now they have the unmitigated authority to spy on any political figure that would oppose them. That is, it is now possible for them to recommit the same crime in a legal manner. (sure you can't go breaking into people's offices, but who needs to do that when you can just spy on e-mailed file attachments.)
This is scary, digging up dirt on your opponents is a tried and true method of attaining massive amounts "political capital". Using ill-gotten intelligence it becomes possible to infiltrate, fracture, and implode any sort of political organization ala COINTELPRO. Sure this can sound like a paranoia, but under current circumstances there is absolutely no check in place, save the extremely forgetful Alberto Gonzales, to prevent the administration from legally, and effectively using these tactics. Given everything we know now, would you really put it above them?
While the rest of us salivate of the new and improved blue America coming to your neighborhood in 2008, the powers that be could potentially(read probably) be sitting quietly... waiting for that one communication that gives them enough information to smear a democratic candidate, to disrupt local DNC efforts to get out the vote, to fracture the democratic party and split the vote, to blackmail a key judge. All while they conveniently and safely cloak their own actions under the veil of "executive privilege" or "state secret".
God only knows what they are or will be doing, and thanks to our blue dog friends, God really is the only one that will ever know....
Oh yeah, and now we can listen in on al qaeda, who have probably been operating under the assumption that their communications have been wire tapped for the last two decades. I feel so much safer.