This is my current and most technologically advanced computer. As far as case mods go on this, its just a lot of accessorizing and wire management. No real physical modifiying except for the Playstation controller ports on the front.
Specifications:
Lian-Li PC-75B
DFI Lanparty NFII Ultra B
AMD Athlon XP AIUHB 2700+ (240x9.5)
Thermalright SP-97 with Smart Fan II
Sapphire Atlantis Radeon 9600 Pro Ultimate (Why such a long name?)
Promise Ultra133 TX2 IDE Controller
SoundBlaster Live! X-Gamer
Buffalo DDR466 512mbs BH-5
580gbs Hard Drive space (Western Digital, Maxtor, Seagate.)