I got a FullHD Samsung 40" 5 series a few months ago for R12800.
I especially wanted something in full hd with a decent response time.
30,000:1 dynamic contrast ratio, 5ms response time and full HD, LCD
I love it, no complaints whatsoever.
I previously owned a 42" LG which was stolen. To be honest I have not even noticed the size difference. If anything the Samsung's image looks a bit tighter as a result of the 2inch size difference.