I highly recommend a Lian Li PC-7A Plus II. I just picked up one yesterday.
http://www.newegg.com/Product/...x?Item=N82E16811112068 (the black one is $89 right now)
Here are a few reasons I recommend this case:
1) At less than $100, it's practically free for a Lian Li. If you've never owned a Lian Li case, you will never go back once you do.
2) It's not too big. It can fit on a desktop easily.
3) normal, upright ATX mobo orientation - your heatpipes will all work as they should
-and now for the important (video related reasons)
4) It will fit a monster size PSU should you need it, as there is nothing obstructing the PSU from the rear of the case all the way to the back of your top optical drive. Even with a DVD-ROM installed in the top I'm pretty sure that you could fit a PCP&C 1KW or Enermax Galaxy in there.
5) It will fit an 8800GTX without modification
A few notes on my install:
The hard drive cage at the bottom is completely and easily removable by simply unscrewing two screws. This is not necessary to install a GTX, but it if you look at the link I provided you will see that by doing this you create a HUGE open space for the video card(s) with a nice 120mm fan right in front. I'm pretty sure that you could run a quad SLI 7800GX2 setup in this case. For this reason, I completely removed the bottom HD cage and installed a single DVD-R drive at the top and my three HDs in the slots directly below it. I still have the two floppy bays open should I want to install another HD, floppy, or card reader.
I used a Lian Li drive bezel for the optical drive, so the rig looks pretty.
http://www.newegg.com/Product/...x?Item=N82E16841101023
I also made sure that I picked up the PC-7A Plus II (the "II" is important, as it denotes dual 120mm fans and the
grille on the side of the case that allows you to mount an optional (it should be included IMO, but it's not)
BS-02 to cool your video card from the side. The stock setup on the BS-02 has the fan facing outward as an exhaust, I flipped the fan around on mine so it works as an intake to blow fresh air on the video card.
This is probably way more info than you wanted out of this thread, but I'm so impressed with this case for the money that I wanted to share. For $150 (case, optical drive bezel, and optional fan) you can put your 8800GTX in a Lian Li case that has room to hold any video card and PSU that you will need for the foreseeable future.