I have the Antec Plus1080AMG (no window) case and it's excellent. Mine came with a Antec TruePower 430w PSU, but was replaced with an Enermax PSU. The TruePower PSUs are Antec's top-of-the-line units, so go with one of these if getting a case without a PSU. The only drawback that these PSUs have are that they get very warm. The reason is that the fans run very low RPM to help reduce noise. They are temp controlled, so they pick up speed if the case gets too hot.
Make sure you get some decent 80mm case fans, too. Antec ship their cases with cheap sleeve bearing fans. Both cases are identical except for color and the side panel window. I like the side panel fan as it blows cool air over the video card. I also like the front intake air filter. It's a great case.