hello I am the deaf. I need a portable machine to store my rehab programs that incule audio books ebooks and such. I am also into photography. Mostly the nephews hunting and fishing. I am looking for the right combination. 11 or 13 inch MBA 4 gig of ram or 8 gig 1.4 ghz or 1.7 ghz storage 128 or 258 I want to stay bellow 1,200 bills. The lower the better. Which options are must haves for my stated purposes. I do have an iMAC that the MBA can be hooked up to with a lot of storage. What say you?