I have been going back and forth over the Lightroom vs Aperture debate for the last week or so and I keep coming back to Aperture. I just feel that's it's a more robust application, all things considered...and I like to support Apple. My main concern with Aperture, however, is possible performance issues. That said, I have a four month old 15" 2.16 MacBook Pro Intel Core Duo 2 with 2 GB RAM with the standard features (120 GB hard drive, 128 MB VRAM, 5400 rpm hard drive). So far, Aperture runs pretty good except I have noticed that it did tend to lag here and again when I transferred my entire iphoto library over to it (5800 photos, 12.4 GB worth). It seems to be zippier with smaller libraries. I am thinking that I will probably just start fresh with Aperture and just bring over select photos from my current iphoto library- but I know that with time, my Aperture library will, of course, grow. So, my question is: would it be worth the trouble and expense of upgrading to the next level 15" MacBook Pro? This would increase the CPU to 2.33 Ghz, and the VRAM to 246 MB. I've been very happy with my current MBP and I was planning on adding a cinema display down the road (23" or 20"). I prefer laptops, or I would, of course, look at the MacPro or the iMac. Also, would it be worth maxing out the RAM to 3 GB? As a side note, I have yet to try any RAW processing as I've been shooting jpg but I see RAW in my near future. Thanks for any insight!