Well after the suggestions of this forum, I finally decided to go get an amp and component set for the front stage of the Camry.

This is my setup.
Currently, I have:
Kenwood DDX-6019 In-Dash DVD Receiver
Kenwood KNA-G510 Navigation Add-on
Kenwood KFC-X170 2 way speakers for Front
Stock Rear Speakers
What I'm adding:
Polk DB6501 Component Speakers for Front 100 Watts per chan.
Blaupunkt THA275 Thin Series Amp 75 Watts per chan.
I have deadened all 4 doors.
I don't have a a real car audio place in town to really sit and listen to speakers so I read a lot of reviews online about the Polk DB6501 and their predecessor, the Polk DB6500. They seem to be known for clarity and not harshness so the DB6501 seemed right up my alley.
As far as the amp, I was looking for something with adequate power (though I know more power is always better) with a small foot print so I could hide it under my driver's seat. The Blaupunkt amp seemed like a good idea since it has a small footprint and is pretty thin. Also has a clipping indicator. Hadn't read anything bad about the amp and it comes with a 1 year warranty.
My question is - Is this a good setup? And where can I ground the amp if it is installed under the driver's seat?
Thanks guys.