I just got a MBA base for xmas and have been using it with my Dell U3011 for the last 4 weeks. This is my first Mac so now that I've adjusted I'm concerned about performance. At any given time, I have the following programs running: Komodo Edit (with several tabs) XAMPP Thunderbird Word and/or Excel Firefox with 5-10 tabs and performance gets pretty sluggish from time to time - slow animations, choppy video, pinwheeling, etc. so I've been watching Activity Monitor and my page file is typically between 2.5 GB and 3.5 GB. I also run my monitor at native resolution, 2560x1600. My first thought was that the Air just doesn't have enough horsepower for what I do, base or ultimate, and I need to get a Mini to use as a desktop. This would cost quite a bit more but would ensure that when working at my desk I had plenty of power to handle my work. Having a desktop and a laptop, however, would be less convenient in terms of file management and simplicity. Now what I'm wondering is, would the MBA with an i7 and 4GB of RAM be noticeably more capable, so that I could use it at my desktop without any slowdowns? If not, I might as well suffer for another 3 months or so and get the ultimate when Ivy Bridge is out. I've got 3 days left to return this one so any help is greatly appreciated.