Lurch, case I used for my Mini ITX build is neat - sort of reminds me of the Walker case in a vague way:
http://www.antec.com/product.php?id=2102&fid=23
Have had my eye on the skeleton case for awhile, I've also been looking at
http://www.bitfenix.com/global/en/products/chassis/prodigy/ in possibly white :-)
My current setup is an old HP machine core2duo running on windows 7, but you wouldn't know that.
Have removed everything windows wise so boots like an Amiga, mouse arrows and all and then I replaced the shell with winuae. Fastest most reliable Amiga ever.
I've wasted a grand or so (over 4 to 5 years, sold 500, bought another etc) on my A500 plus and it's still not stable. Things don't work as they should. One day it's fine the next morning heartache.
Hardware is getting too old, which is a shame. Jen's is making some nice gear, but pricing wise hard for me to spend. The indi is the only thing I've purchased that's been brand new, and that was a nightmare getting to work (as I've posted in another thread) and the cost was a hard one to swallow.
The A500 never looked better though, amazng picture. I've made the mistake of selling old hardware before and I don't think I'll do that again.
But I think anymore money will go into PC hardware, stable, fast, cheap, new :-)