TAIPEI, TAIWAN, Nov. 18, 2002 ? Silicon Integrated Systems Corp. (SiS), a leading supplier of core logic and graphics chipsets, today launched its second-generation AGP8X core logic chipset, the SiS655. The SiS655 is the first Intel® Pentium® 4 (P4) chipset on the market to have dual channel DDR333, providing double the bandwidth.
Looks like you won't have to wait too long.

I'd hold out for an SiS655 board because it should have a 4:5 divider and if you can OC your 2.4B up to 160 FSB, your RAM will be running DC-DDR400 which should give the SiS655 a slight edge over Granite Bay. Hopefully the first reviews will start popping up soon.