I'm debating exchanging my old baseline macbook pro for the new one. I bought it on sale 2 weeks ago strategically anticipating an update today. I figured that if I wasn't happy with the update, I wouldn't have missed out on the sale. And that if I liked the update I could return this one and buy the new one. I'm now wondering whether its truly worth me going through the process of exchanging it. Now the obvious improvements I can see are the bigger hard drive, better video card, and multi touch. I had also researched before, noting that penryn would offer some increase in battery life. All of these features seem pretty intriguing for the 100.00 difference I would be paying. My main question is on the processor, how does the reduction is cache along with increase in clock speed effect the performance. I've read people complaining about the cache reduction, and I'm curious as to whether or not it makes a drastic difference in real world tasks. I do a lot of photoshop, video editing, and audio recording work. How would this processor compare to my current one. If I will see an overall improvement than my decision should be a no brainer. However I'm interested in what people have to say. Can anyone offer me any insight into this? Thanks!