Ive heard of people saying "be aware that because the mobo is inverted that will create heat issues with the heatsinks"...
I cant imagine how it would creat a huge issue, maybe im just not familiar with it.
Heat is made to spread evenly over the metal, gravity does not effect it like it effects liquid.
I wouldn't be worried. Someone correct me if Im wrong plz, perhaps i could use some education on the matter.
BTW ABOUT YOUR CASE
-1) Halarious
-2) Looks like a disaster waiting to happen (i noticed a little metal corrosion at the bottom of your case so obiously you have sprang leaks in the past.)
-3) Ill bet it overclocks very well considering that absolutly everything but the memory is cooled by liquid (even the hard drives...thats nutz/impressive)
-4) Is that Duct tape or Tin foil.....yikes.
-5) Good thing your upgrading...bought time
ALSO
Honestly, I suggest you just get a new case for your new computer...i mean...check this out for cheap you can get a nice case. And it looks a lot better.
http://www.newegg.com/Product/Product.asp?Item=N82E16811147040
And if you have more money get the Antec Solution SLK3700
http://www.newegg.com/Product/Product.asp?Item=N82E16811129140
-or- a little more and the the Thermaltake Shark
http://www.newegg.com/Product/Product.asp?Item=N82E16811133143
And if you have even more money buy the Thermaltake Kandalf. I love mine
http://www.newegg.com/Product/Product.asp?Item=N82E16811133153