Main PC:

Athlon II X2 245 2.9Ghz
8GB DDR3 RAM
nVIDIA GeForce GTS 450 1GB (MSI Brand)
500GB HDD
Windows 7 Ultimate N 64 Bit
22" Display 1680x1050

TV PC (which can also play FFXI if needed)
Intel Pentium 4 HT Xtreme 3.0Ghz
1GB DDR RAM
ATI Radeon x1650 AGP
40GB HDD (OS Drive) 250GB HDD (Data)
Windows XP Professional Service Pack 3
37" TV, 1920x1080

Then there's my lowly laptop which can no longer play FFXI as of WotG:

Intel Pentium 4 2.4Ghz
768MB RAM
ATI M7 (Radeon 7500) 16MB
40GB HDD
Windows XP Home Service Pack 3
15" screen 1024x768