Hey guys, i just got a mac air, my first apple product aside from an apple ipod touch. I got it from kijiji for 1050 the box was sealed and it was bnib Specs: 128gb ssd 4gb ram i5 intel so far these are the following things i've done Disk repair Changed touchpad / other settings Checked SSD's manufacture = samsung inverted scrolling direction Calibrated screen Changed Dock icons Software updated Downloaded Chrome Registered my mac air Downloaded Flip4mac Downloaded IWork Installed Flash Player Questions: How do i check how much warranty i have left? Is chrome compatible with os lion to its fullest potential How do i change my wallpaper? How do i go on about using an external drive? and which one is the best / most portable one? Best lightweight sleeve? currently Looking at the speck pixal sleeve and the moshi muse should i get a speck case? and will it scratch the air? What other apps/programs do i need to download? Is there anything else i need to do?