512k all the way for gaming. The 512k P4s, or the 'northwoods' run cooler, overclock better and go faster. In most games, a 1.6GhzA (512k) P4 would be about as fast as a 1.8ghz (256k). The 1.8GhzA (512k) would be about as fast as a 2.0Ghz (256K) as so on. For a gamer you should not touch a 256k P4 with a ten foot pole.
So basicly YES, a 512k P4 is worth the money.
Looney