This shit is addicting. Should I.... 1) buy a backpack and a Sigma 10-22 or Nikkor 10.5mm OR 2) go ahead and buy the Apple Mac Pro, and I would have to add a bit of my own money to get it... but I would have to wait until next month to get Photoshop and Lightroom (don't want a pirated copy since its a business expense. Not willing to take the chance!!! Suggestions between the lenses would be appreciated. I would love both, but its not doable at the moment.