best place to install amps in 97convert

Just wandering where to put the amps, i have 2 ppi 2050M amps,2x50 each side.should i put them under the seats,or in the trunk mounted somewhere? i know i cant drill in the trunk due to the gas tank being so close,could i put them where the factory amp goes, in back left-hand quarter panel? i want to basically keep amps hidden, they will be driving 2 infinity speakers on the front , and the other amp 2 infinity speakers for the rear. everything will be running at 4 ohms, off a pioneer head unit.thanks for all replys btw are these amps any good, heard they are pretty good, but would like second opinion

Somewhere in the trunk is best. There isn't enough room under the seats.

Maybe something like this but with amps maybe on the rear wall.

http://memimage.cardomain.com/member_images/1/web/325000-325999/325689_20_full.jpg

thanks ls1 rulz that is just what i was looking for, looks like a great setup. now i have to get to work. thanks again.