I purchased my 300 from www.glasscages.com and I am very happy with it. Their prices are amazing! Only real advice I have if you choose them is have a pretty good idea of what you want before you call them. They aren't always the most, uhm "patient" when they think someone may be "wasting" their time. I had absolutely no problems dealing with them but others have posted slightly different experiences.
It was shipped about 15 miles from my house. I was supposed to pick it up in Columbus, Ohio at one of their delivery locations but the person that packed their truck got ill and was unable to load it. Since this happened Glass Cages went ahead and shipped it to the closest Roadway location to me for the same price ($130) that I had paid for it to be taken to Columbus.
It worked out perfectly for me. Glass Cages went out of their way to work with me on the deal and they have earned a long term customer.
Here is my 240. 8x2x2. I just threw away about 3 buckets of the plants, they grow incredibly fast.
Filtration - Fx5 x 3, 1 green killing machine uv
Lighting- 2 Catalina 48w x 8 48" fixtures (768 watts total)
Sorry for the poor quality picture. My camera's memory card stopped working, this is from my crappy cellphone. Also included a picture next to a 42" tv to give you an idea how large a 240 is!