you cant get plasmas at a low size as 32" anyway. and lcd's are much better for gaming.
personally id go for a 1080p tv, as new consoles do actually utilise it and can make a difference imo.
samsung, lg, sony are good. or panasonic if you've got the money.
if you dont want to over spend, but still want good quality, then the samsung 556 32" is a good buy at around £500.
if you want to splash out then id go for panasonics new 32" (i think its the px80, not positive though).
the sony 4000 32" is also a nice buy.