Your system looks pretty sleek and, actually, pretty clean! The SSD should be a nice upgrade. I'd like to have one for photography but, alas, laptops aren't as easily modified.

Dusty, you say...

My first year as an undergraduate in Wisconsin, I helped a friend get his system running. It turns out, there was so much dust inside the fans couldn't even turn! He grew up on a potato farm. I ran a vacuum while using compressed air to clean it out. Despite these measures, his dorm room looked like we were running a fog machine, by the time we finished.