Hi all, I've been contemplating purchasing a 2011 i5 1.6Ghz 4GB Macbook Air 11"... as well as a Mac Mini (2011 i5 2.3Ghz RAM upgraded to 8GB). The MBA would be for my portability needs, and the Mac Mini would be hooked up to my external 23" monitor. However, I recently started thinking that perhaps the MBA could simply just substitute the desktop-usage of the Mac Mini. That is, I'm thinking of just using the MBA as my desktop as well, and plugging it in to my external monitor instead of having two separate computers for travel and home usage. Going over the specs, the only difference in the two computers would be: 1) CPU processing speed (1.6ghz in the MBA vs 2.3ghz in the Mini) 2) RAM (4GB limit in the MBA vs. 8GB in the Mini) **3) HDD (128GB in the MBA vs. 500GB in the Mini... this is not a big issue since I have a 2TB external HDD) Will I see significant/noticeable difference in these specs? I've never actually considered/thought of using the 11" MBA as a primary desktop computer... but I started reading articles/posts from people who apparently do so with theirs. It would be great if I didn't need to spend the extra money to purchase a separate Mac Mini just for my primary desktop set-up, and could just use my MBA as my primary desktop. I use my computer mostly for internet browsing, iTunes, movies, music, Skype, MS Office, light photoshop/movie editing work. I don't play games or do any programming. However, I would do a good bit of multitasking... i.e. have several browser windows open at one time, with iTunes, Skype, and Excel/Word open as well. Is there any point to me getting the Mac Mini on top of the MBA? Or would they mostly be redundant in my case? Also, as a secondary question, if I were to use my 11" MBA as my primary desktop computer source, would upgrading to the i7 processor be worth the extra $200? Any thoughts would be greatly appreciated - thanks!