LCD vs Plasma; huge debates over this. I chose LCD because;
a) I intend to display PC graphics which are better on LCD
b) Although Plasma screens' half-life is now advertised as being the same as LCDs whereas they used to be half, the physics are still the same
c) speed of LCDs are now good enough
d) LCDs are a lot lighter for wall mounting then Plasmas
HOWEVER, the style of picture is quite different so make sure you check out favourite DVDs against your shortlisted LCDs & Plasmas before buying!
Plasma technology is mature but LCD is still being developed further, so the longer you wait the better LCDs you can get.
You will be better off check Audi Visual forums for more info (e.g. avforums.co.uk ?)
I have a 40" Sony Bravia 1080p LCD tv.
You need to check out the specs for shortlisted TVs - do your own Google search and post your shortlist in AV forums.
2- PC input - yes, via VGA or DVI-HDMI.
3- Picture in Picture - no
4 - RGB Scart sockets for best audio and picture quality.
Yes, but you will find that HDMI is better still as it retains the signals in the digital domain & LCDs pixel resolutions is also in the digital domain
5- Built in speakers? - TVs all have these, to varying levels of quality
6- Nicam / Surround Sound - yes, almost by default for TVs
7 - Built in Freeview - yes, almost default for new TVs
Choices are very personal - good luck.