if you're planning on buying a 32in LCD, i don't think it would matter kun kaya nya mag 1080p.
I read from somewhere, and have seen narin that 1080p is best experienced atleast on a 40in lcd.
for playing PS3 games, setting the resolution to 1080i (since HDready lang yun nakitaan ko) makes the texts smaller and harder to read.
720p (on 32in) is very decent already for viewing (in general).
if you have the money naman, and would really want to experience full HD, buy atleast 40in..
but if yung room is the main factor for buying 32in, any brand or model may do. don't be concerned too much on the slight differences of the models (ex. s400 and v400). <-- i see that the main diff here is the availability of the digital media in the v series which is proprietary to Sony products.... which is still very few (like wireless, ipod dock, etc). if you foresee that you'll be requiring this in the future, then why not shell out an extra 10k++ for it.
when comparing same brands, don't be fooled too much on the difference of their colors. compare the specs primarily instead (check the technology used, and the differences). when viewing them sa showrooms side-by-side, it may appear surely that the other one is better, but if you'll really going to check, i would bet that they were just not calibrated the same (there's a thread here that discusses how to calibrate colors the right way).
but ofcourse, you have to compare them fairly... 40in-to-40in / hd ready-to-hd ready (or fullhd-to-fullhd).
and also, an lcd tv experience is best coupled with a good or well invested home theater system. if a big part will only be used for tv (or cable) viewing, wag nalang lcd.. mahal lang. baka magtaka ka pa kung bakt mas maganda yun viewing experience dun sa old tv mo.
if you have the budget to buy an lcd tv, weigh your options carefully and think ahead. full hd tv's as i said is best experienced with a very good home theater system. the dvd home theater systems packaged with the tv's in the stores are just for playing DVD's. For you to see 1080p in your lcd, you should have a Blu-ray player or a ps3 at the least. syempre... to experience good audio, you should also have speakers (amps are optional) to get a feel of the truehd sound or dts-hd.
hehe..
enjoy your hunt for the best lcd.