Got it. Cost $33.34 Get the number from the back of the screen. Do an eBay search for:
LCD Controller Driver Board Kit for (insert your number)
Here's an example:
NT68676(HDMI+DVI+VGA)LCD Controller Driver Board Kit for LP154WP4-TLA1 1440X900
http://www.ebay.com/itm/NT68676-HDMI-DVI-VGA-LCD-Controller-Driver-Board-Kit-for-LP154WP4-TLA1-1440X900-/371401859443?hash=item567946a173:g:tKsAAMXQd75SIHzA
I just ordered one for a 2007 24" iMac cost $31.59 for the controller board:
http://www.ebay.com/itm/HDMI-DVI-VGA-LCD-Lvds-Controller-Board-Driver-Kit-for-1920X1200-LM240WU2-SL-B1/371681361043?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649
The problem with this one is that i also need a power supply to drive it for $35
5V/12V/24V Universal LCD/LED Power Supply Power Board for LCD TV 24"26"32"
http://www.ebay.com/itm/122481968571
Now I'll have a great looking monitor in an iMac stand. Great novelty item. Total cost $66.59
I may post a guide on it, if there is any interest.
Problem, I can buy a brand new 24" HDMI TV on eBay for $80 but it won't have the class the iMac will. But could I have put the TV in the iMac case?