chirping noise from driver side? help!!

[ArisESQ]

My daily driver (2004 Z06), has an unusual chirping noise coming from the driver side of the engine bay (I think). It isn't particularly audible at idle, but at around 2000 rpm it becomes pretty clear. Annnd, the sound increases frequency with engine RPM.
I've done some research on corvette and LS1 forums, and have seen that the problem can be a number of things, ranging from a bad alternator pulley, tensioner, noisy rocker arm, or bad lifter (among other things).
Does anybody have any experience with bad lifters, or anything that sounds remotely like what I'm describing? I'm gonna pull the belt off and fire the car up to see if the noise persists, but aside from that is there anything else i can do??

I appreciate any help. Thank's a bunch guys.

Aris