A330 is the worst Samsung to consider, the on/off CR, and ansi CR are so poor, that you would see very little detail, with horrible motion resolution.
120hz for BD is the worst advice anyone could give. It strips away any and all work that goes into producing the PQ that goes into them. 120 is a nifty feature for gaming when you aren't playing online, as it introduces loads of input lag.
At 26", if you are looking for a panel strictly for your PS3, I would look into a monitor. You will save a load of money, and they are actually better for gaming (assumming you have a source for sound)