Hi Ryan,
Sorry, I forgot to update you in this thread. Instead, I added the pics to my existing thread. ( http://www.lexusownersclub.co.uk/forum/topic/87738-new-pics-of-my-is200/page-4 )
Anyway, I didnt take any pics during the install, but took a pic of the speaker I used. Perhaps you could get the same ones - they fitted perfectly in the stock locations and sound pretty decent too!
EDIT : Here's a walkthrough to assist you further. --> http://www.lexusownersclub.co.uk/forum/topic/30854-upgrading-oem-69s/