I have the 500gb Momentus XT Hybrid SSD+HDD drive... the HDD itself is a 7200rpm drive in my late 2008 Unibody MBP. It loads things really quickly so long as it has been opened recently... usually 1 bounce... I'd say my CS4 Photoshop loads in 2 seconds as long as it has been opened once after a restart. A restart takes 45 seconds from start up sound to having all my desktop apps loaded. But I found that I only get about 3 hours of battery life on a full charge when I am just surfing and that is with the brightness turned WAY down. I am curious how much and even if an SSD would be A. faster and B. conserve more power. I think I'm really just having Macbook Air envy. It seems to be as zippy as any 2.5 ghz+ Macbooks but with half the processor speed. So I was wondering if an SSD would give me all the benefits of a Macbook Air (5+ hr wifi surfing battery life, super zippy program/page loading) but the processing power and speed of a MBP if it was put into one. Anyone ever use both the Momentus XT and an SSD and can give me real life comparisons? Is it worth the upgrade? Thanks.