Thanks for the information. How exactly does the plastic cowl cover come off? Any tricks? I don't want to break anything.

The wiper arms clearly have to come off first, right? Is that where you said I need to make a mark (before removing the arms)?

I'll take a look
 

It's the car my wife drives so I won't be able to look quickly, but it wasn't bad - just that I don't remember the details.

Here are some videos I googled that are very similar and should get you going. I do think you start by removing the bolts on the windshield wiper arms. see: http://wiki.answers.com/Q/How_do_you...n_a_1998_Camry

Here's a 2 part video (not the same, the cowl is metal here, but the basics are the same.)
Part 1: http://www.youtube.com/watch?v=HVYE9...eature=related
Part 2: http://www.youtube.com/watch?v=mTbbJFwUGtk

Here's a 97 Camry:
http://www.justanswer.com/toyota/2r7...or-access.html

Then there is this:
http://www.justanswer.com/toyota/2r7...or-access.html

These got me going.

Tom C