[Mike Schmidt] "Only thing I thought of so far was to duplicate the track so I have two identical tracks. Put reverb on one track and pan it, leaving the dry track either in the center or panning it in the opposite direction"
That's not necessary. You should use an FX Send to do this.
In Vegas they are called
Assignable FX. Use the
Insert Assignable FX... button on the Mixer to add a Reverb FX which will show up as a Bus in the mixer (but it's a special bus called a "Send").
Then on the audio track, a new fader will appear with the label FX1 (you may have to make the audio track taller to see it). This will let you send as little or as much of the original signal to the reverb. You can control the pan left or right from the new Reverb FX bus in the mixer.
The difference between a Bus and an Assignable FX Send is that when you use a Bus, the entire track is routed to that bus. When you use a send, the track is router to both the original Bus (Master is the default Bus) and the FX Send at the same time giving you much more control over the wet and dry signal and allowing you the ability to pan them independently.
These screen shots are from Vegas Pro 11.0 so it may be slightly different in Vegas Pro 9.0 but it still exists.
~jr
http://www.johnrofrano.com
http://www.vasst.com