I got my LG 32LK450 from Amazon and very disappointingly it is a "D" panel. I decided to unbox it and run a few tests anyways.
To test input lag, I turned off all processing and set the LK450 to game mode. Then, I took shots with a cheap digital camera of the set in clone mode versus a Samsung PX2370. The result was that the set was 1-2 frames (more often one frame) behind my monitor.
The LK450 did well on the lagom.nl tests and after setting the black level to "high", I was able to see all of the squares in the black and white level tests. This is surprising to me because I thought the VA panel would be weak on the black level test. For the viewing angle test, while viewing head on the LK450 was pleasantly uniform compared to the TN panel, but the gamma shift at off angles was unimpressive. There was slight banding in the gradient test, and square 4B had movement in the pixel walk test.
I then tested the response time with PixPerAn and the performance was noticeably worse than the PX2370. Moving images were much more blurry and generally had 2 ghosting images versus the PX2370's 1 ghosting image. Fast moving blacks would smear and leave trails on while backgrounds.
As for subjective appearance, I was satisfied with the way the set displayed fonts. I didn't test 4:4:4 but I did use the DVI->HDMI connection from my ATI Radeon 5850. However, the colors on my PX2370's colors were more vibrant (without being over-saturated). Despite being a VA panel, the blacks still looked unimpressive to me (even with black level set to low) and would quickly turn blueish at an angle. With only very minor adjustments to both sets, the PX2370 produced a better looking image.
Lastly, I tested the headset jack and found no static when sound wasn't playing. This is a huge problem on my two Samsung monitors that drives me nuts. I tried the Halo Theme linked to in the FAQ and found the result to be inconclusive. There are portions of the song which naturally sound staticy (i.e. 2:47-2:54) and even if it does sound slightly more pronounced on the LK450, it may not be a defect of the monitor.
Overall, the LG 32LK450 VA panel is a decent set, but I still have my heart on IPS for the faster pixel response time and better viewing angles.