I'm able to swap my 2 sticks of 256meg Twinmoss pc3200 with windbond ch-5 chips for 2 sticks of 256meg adata pc4000.
Not sure if its worth it or not? More future proof? I won't be needing ~202mhz+ fsb at the mo due to my 3.06ghz. With a 4:5 ratio my cpu is running @ 3.7ghz / 202mhz (5-2-2-2) which is pretty much the limit of this chip on air.
Cheers in advance, Ethos