Ok to help I have done this.
As you can see the tower is too big for the gap it is meant to go in and there are two main issues with it where it is.
1. Because of the support board at back of desk, I can't push it all the way back (power cable)
2. Because of point one, I constantly hit the blasted thing cause, like most, I sit at the middle(ish) point of the desk.
I am thinking of getting a new desk but want one similar to this one. Tower space slide out bit (big enough for keyboard and mouse)
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7600)
Mother Board: Gigabyte GA-880GM-UD2H
BIOS: Award Modular BIOS v6.00PG
Processor: AMD PhenomII X4 965 Processor, 3.4GHz(Stock)
Memory: 16GB RAM
Graphics Card: GeForce GTX 550 Ti Memory: 1024 MB
GPU Driver: 126.96.36.19961
Direct X 11