PnP had the PS43D450 and LA40D530 (model according to them...) for R4999.
I got the PS51D450 for R6499 - bought it from them because I had PnP vouchers which made it really cheap (<R5K), and because at that price you cannot get a similar sized model.
Comparing screens in-store is really difficult, LCD and Plasma both have advantages, and the marketing ploys or ignorance of those who setup the screens make it harder to choose. For example - 4 LED tvs were playing supersport HD - the AIM tv had by far the best picture! Turns out this was the only model with an hdmi source...
When comparing, the full hd lcds have a noticably sharper picture than the hd ready plasmas (fully understandable when playing 1080p), but even from a reasonable distance (>2.5m).
The blacks on the Series 5 lcds seem blacker than the plasmas as well, however, move even slightly off center, and the lcd blacks become a grey, while the richness of the plasma, and black levels are constant.
The reflectiveness of the screen is only really noticable in bright direct light, and when the unit is off, yet not too much off a distraction - my tv has sunlight directly on it.
During evening or dimmer conditions this issue is a non-issue.
The shop settings and signal source in-store turned my wife off the model I chose, but after some tweaking - colours, blacks, sharpness, noise etc. the picture is Great. Smooth motion, natural colours at any angle with good contrast. BBC Planet Earth is jaw dropping at this size.
It's not a perfect tv, but what is, at a budget price? Each perceived improvement adds R1000 or more to the price.