complete obvious point that everyone whos saying CPUs should be able to do this - CPUs aint being made purely for games, let alone processing physics within games, these cards are, and whos CPU has access to dedicated 128mb+ of ddr3?
That said they are too expensive for me, but i like the way things are going, our PCs will be slaughtering xbox+ps3 soon enough, dont forget at the moment the bottleneck for top end systems is the CPU, so someone with a top of range system playing with low physics could stick one of these in, turn on high physics, and probably get a higher FPS than they did in the 1st place since CPU no longer has to do anything to do with physics. Im sick of all the fuss over best graphics, i wanna knock walls over to kill ppl hiding behind them. Graphics dont really add to fun(i still think cs is better than source, after playing them both this week since i returned to having an internet connection)... physics on the other hand makes things loads more entertaining -mavity gun anyone?