There is a lot more factors than just the processor. Personally I prefer i7 over i5, but some users even have i3. Captivate is memory hungry, RAM is important as well. It is also heavy on graphics, if possible get a dedicated graphics card (NVidia works nice with other Adobe applications). If your budget supports it please have a SSD at least for the applications, it starts up so quickly. Last question: are you used to have open several applications at the same time? I always have Photoshop and Audition (sometimes also Illustrator) open together with Captivate 