Sony KDL-42V4100 or KDL-40W4100

[RealSkyDiver]

I can't decide which one to buy. The problem is that I really want it to be 42" and the KDL-40W4100 would exceed my price limit (1200$ incl. everything), so I don't know if the difference in picture quality is really that big.
KDL-42V4100 also supports 24p. Doesn't that mean that it should display with the same clarity as 120hz?
There's also KDL-46W4100 but it's beyond my budget and that size is probably a little overkill for a bedroom.
I'm gona use it for the usual like TV, BR and gaming.

ps.: I also have the Panasonic Viera TH-42PZ8 as a choice but heard it has some blurring issues and I much prefer LCD (especially Sony Bravia) anyway. Eco friendlier...