My new system will have a 4670 processor and an nvidia 660 GPU. I'm currently stuck deciding between these two cases.
I'm happy with everything I've read about the 400R, with one exception- it apparently doesn't have a dust filter on the top or the side vent. Given that my previous PC system had no top vent and STILL managed to accumulate enough dust that it started overheating, this is a concern. I don't want to have to clean out my system often and I love the thought of a computer that isn't a dust magnet. Anyone here who has a 400R- how dusty does it get?
Unfortunately, the dust filters you can buy for the 400R are rather expensive in the UK. In fact, to get a 400R and put a dust filter on it brings it up to the price of the 550D.
With the 550D, I'm happy with everything apart from a niggling, likely paranoid concern about the cooling. Most of the time, I can't imagine that my system will be particularly taxed by what I do with it. It's only apparently a few degrees higher than the 400R- but could persistent higher temperatures (with the stock fans) be a problem for longevity? Mind you, I can imagine that not letting so much dust into the case would also aid the longevity (and temperature performance) of the computer.