The Corsair 450D is the smallest of the Obsidian family, yet offers the same cool and clean looks, a potent feature set all at a price tag of 120 USD - which is 20 dollars less than the 550D, but also 20 dollars more than the 350D. Is there enough room for the 450D to fill such a gap, or will it end up taking the wind out of either neighbors in the case family?