I built this specifically for flight simming (P3D; FSX; CLoD; DCS etc).
Overall the build went well, case was very good and it was the first time I really took the trouble with cable management (I think the smaller case size forces that which is good) and trying to implement a colour scheme.
The PSU is actually not the one listed here: its an old semi-modular Antec one (850) with the yellow racing stripe.
I was somewhat disappointed with the mainboard because I spent four days trying to figure out why my CPU temps were maxed out (91c on boot; high 60s on idle in Win7) and eventuallly found out that Gigabyte in their wisdom decided to put a row of capacitors next to the CPU socket, meaning that the H60 waterblock had to be installed in a specific orientation (with the longways properly orientated to the socket). I originally didn't have this correct, so the waterblock wasn't seated properly on the CPU. This gave me quite a bit of angst.
This was now solved and temps are much more comforting. At present I haven't messed around with any o/c but will try to get it up to 4.4Ghz. Other plans for the future are cosmetic involving replacing the side fans with coloured ones and perhaps some other lighting (white / blue) unless anyone has a better suggestion?