I have a 13" MBP summer 2009 (2.26 Ghz processor) and seem to be able to get a pretty good price on it if I sell and would only cost me around 300 to upgrade. Is it worth upgrading if the new one ONLY gets an SSD/i3 SB processor (already has a better battery for 10 hrs instead of 7) without any other changes like a redesign/lightpeak? Just wondering if those 2 features (or 3 including battery) are worth $300 or if I should just stick with mine and wait for a redesign later this year. Thanks!