The Antec Nine Hundered is one of the most highly reviewed cases at Newegg and has a five egg rating, so it certainly isn't bad. It's more of a premium case that is made of steel. When looking for cases, generally the aluminum cases are the best with steel a close second. Also, cases with windows or extra fans on the side will be louder. The LIAN LI PC-7B plus II Black Aluminum ATX Mid Tower Computer Case is a good, but plain, case. Shipping will be expensive with most cases since they are heavy, so add another $20 to $30 onto the price, assuming there isn't a free shipping deal on, to get the actual price. The COOLER MASTER Storm Scout SGC-2000-KKN1-GP Black Steel is also a good case at the same price that has free shipping. When building a PC, you need a motherboard, case, CPU, RAM, hard drives, optical drives, a graphics card, and an operating system. You don't really need to purchase thermal paste since stock coolers, and most aftermarket coolers, come with it in the box or pre-applied.
First, I actually like that Storm Scout. Good choice.
About the Antec 900, the reason I bought it was "cause it looked cool" and honestly when I gave my review I gave it 5 stars, which was silly as I didn't really know what to review a case on since I had no comparison. I'm very surprised that it has such high rating cause in my opinion it's really overrated, I'm not sure if you used one of not, but I see you current case is the TJ10, I was actually very close to getting one of them instead of my Lian Li P80, my good friend from Finland got that TJ10 the nvidia marked one.
Really mine was his seemed very similar to me and the only reason I went Lian Li was cause I found it in Ireland first. The reason I got a new case though was due to the restraints of the Antec 900 for the gear I had in it, putting even a 4870 was such a tight squeeze, the inside fan that is placed in the 900 had to be removed. Even then it was still tight. I have a pic I'd like to show.(hope I still have the pic)
Well, I know it's going to unfair in the fact the Lian Li P80 is huge compared to the Antec 900. But the parts in this aren't special and they are what people would generally buy size wise.
Left click and click view at full size.
I know the cable management is a mess, but I gave that case to my brother and I tidied up the cables as much as I could. Honestly for the price you pay for the 900, there is what it really looks like with the parts in it. Now look at this Antec 300. Which is considerable cheaper.
Now cable management is better there. But it still shows that they're basically the same size. That's why I advise a 300 over the 900.
In my case though, and I'm glad I did! I got a new Full Tower case. And I'm so glad I did, it's really a pleasure to work with a case with so much space. Everything was such a good change from the 900. So from personal experience, I will say the 900 is overrated and not worth it.
For the lulz, here is what my rig looks like now. I have modded my case though. And I must say, the quality of the building put into it is excellent!
So my final words on the Antec 900, and not those on a biased vendetta or anything. My first hand experience with it, it's overrated and not worth it when you have the 300 out there.