PCI-e expansion boxes?


New Member
Hey everyone, so I'm just starting to get into video editing and such. My computer's about 4 years old and I'm not sure if an upgrade is in order.

What type of system specs would you typically need? I found this PCI-e expansion box that would allow me to add a few cards to my system: Case & Perpheral Solution Turbo Box(PCI-Express Expansion Box): NA211A from Dynapower USA

Would this be a good option? The site didn't list a price, what's the max I should spend on this? Do any of you own something like this? Would I be better off building a brand new system?