Hi fellas! Just read from wiki that there are 2 steppings of the 2.4ghz chip in the mbp. Both are santa rosa (socket p) i believe. Sla43 (e1) released on may 9 2007 and Sladl (g0) released on sep 2 2007 Both are rated at 35 W and have the same cache and clock and fsb. Now i purchased one of these shiny new mbps in june. Presumably with the e1 stepping and there would seem to be newer chips in currently sold mbps in stores. Any idea of the differences between these 2 chips/steppings? Like in terms of performance/power consumption/battery life? Thanks!