The Corsair Vengeance C70 is a fun chassis. The design is different, we like the quick-release clips for the side panel, and there is nothing wrong with the finish or build quality. As long as you don't need much cooling, this is a good chassis, but perhaps not for gamers.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips