Are there any decent PVA panels? I read somewhere that its a compromise between TN and S-IPS, but elsewhere I heard there's an input lag which makes it unsuitable for gaming. The PVA panels definitely seem cheaper than S-IPS panels.
PVA is not a compromise, it's just a different. They
were cheaper for a while, when the 2408WFP and LP2465 were up against...Apple, the 2490WUXi and a bunch of third-tier IPS screens. That was like two years ago. PVA has sort of dropped out of the market, and the only two current models that use it are the LP2275W and F2380. Dell and HP both replaced their midrange PVA units with IPS ones, NEC disco'ed their PVA line, and the second- and third- tier manufacturers dropped theirs.
Basically, you're not getting a 19x12 PVA any cheaper than the U2410 or LP2475W. The Samsung F2380 is a little cheaper than the NEC/Viewsonic 1080p IPS screens, but that doesn't help you any. If you want 19x12 then you are buying used/refurbished/ebay, waiting for a hot deal, or spending more than $400.