On your car you can easily check for trouble codes yourself. Here'* how to do it, and here'* what the numbers mean.
I wouldn't worry about the codes unless they come back. If you just need something to worry about, check the wiring to the afflicted parts for obvious signs of damage and all related connectors for corrosion.
Speaking of corrosion, I had a corroded connector on the charcoal cannister purge solenoid which is located just above the left front tire, and it made a steady clicking noise. I cleaned the connector and stuck it together and pulled it back apart about 300 times and it hasn't done it since. It didn't seem to change with vehicle speed though.
Are you sure you didn't have a rock stuck in your tire tread? That can make a really annoying clicking noise and it would change with vehicle speed. When the rock becomes dislodged, the noise stops except for it hitting whatever as it is thrown out. If you hear the noise again, check your tires.

Huge help with the codes, bastard, thanks. The codes were cleared and haven't returned, so I'll let that go. I replaced the front tires yesterday, but I still have the sound. At this point, I'm going to check to see (since the sound disappeared in the morning) if it seems to be connected with operating temperatures. I'll also check the solenoid connection too. As for the body, I used Liquid Glass yesterday and touched up some bumper flaking and she'* starting to look really good.

Mike