I got a Raidmax Sagitta
case myself, and I gotta say I like it a lot. It's very well built, and looks awesome.
You should know that the included PSU might not be very good, but I think it's definitely gonna be better than the one you have already.
Edit: I just looked at the PSU included with Scorpio case, and it shows 13A at +12V. That's weak! The Raidmax PSU that came with my case has 21A at +12V.
I've been using my case's included (Raidmax) PSU and it hasn't given me any problems. I just hope that when it fails, it doesn't damage any part of my computer.
Also, I didn't understand the thing about the $70. The case you posted costs $50.