A friend of mine attempted to change the rotors (again) on my 1997 Accord LX after I failed at that task. He couldn't get the hub assembly loose from the knuckle either, so he gave up and put everything back together. He took out my brake pads to inspect them at the same time but didn't mention any trouble with that.
A few days after, I've started hearing a funny noise. When I lightly brake, I hear a light knocking-clanking noise from my right front brake. It kind of goes "rur-claink rur-claink rur-claink" in line with the speed of the wheel, and sounds like either something is knocking on the disc as it spins around or the disc itself is somehow knocking back against a larger surface. This is when I have my foot lightly on the brake, say to pull into a driveway on a residential street.
If I'm on the road going 30-40, it'll start out going "cluink cluink cluink" really fast as I first step on the brakes, and as I increase pressure to stop more quickly I can hear it kind of make a rubbery squeaking noise instead of the clanking noise, which also happens in line with wheel rotation. If I let up on brake pressure, the honky-squeaky noise usually goes back to the low clanking noise. Based on how quickly the sounds repeat vs. my speed, I'd say both sounds happen once per wheel rotation.
I tried googling "brakes clunking noise" or "brakes clanking noise" and I found some notes about older model Grand Prix having a problem with loose brake pads causing that noise. Is that what I might have here, or perhaps my friend didn't torque down all of the disc/rotor hub nuts completely? I remember when I worked on it those nuts were pretty sticky - I used an electric impact wrench and that thing clacked until I had them completely off instead of knocking them loose and whizzing them off as it did with everything else (both the nuts and the studs had a good rust patina on them). I had him use my torque wrench and bookmarked my lame Haynes manual where all of the torque specs were, so I know things were wrenched down properly according to my torque wrench.
The reason I ask here before I take off the wheel and have a look is that I want to know what to check. I've dove headfirst into too many little projects with this car and ended up breaking one thing when I thought I was fixing another

 

Ya sounds like your missing some screws.. your rotor is prob. just flopping around ..

 

Hmmm... my old Talon had this issue. Turned out the pad wasn't set right. There were little metal clips that go on the pad when it sets into the caliper, those were gone so the pad just flopped around.

Might look into that...

 

I remember those seeming kind of wonky when I first put in the new pads. NAPA sells new sets for 10 bucks, I'll just try some new ones.