I've got Aperture 1.1.2 running on a PowerMac Dual 2GHz G5 and a 17" MacBook Pro (2.18GHz) both with 2GB RAM. Aperture really slows down some times to the point where I get the spinning beach ball of death for 30 seconds or more. On the MacBook, I only have about 150 photos (Canon RAW) and it's really getting annoying. Has anyone got any tips to speed it up? I might have to try out Adobe Lightroom instead.