How about this for FSX and SH4:
www.cyberpowerpc.com
http://www.cyberpowerpc.com/system/I..._Configurator/
$770.00
(before all applicable rebates)
CASE: ATX MEDIUM TOWER CASE 350 WATT (BLACK COLOR)
CPU: (Sckt775)Intel® Core™ 2 Duo E8400 CPU @ 3.00GHz 1333FSB 6MB L2 Cache 64-bit
MOTHERBOARD: MSI G31M-F Intel G31 Chipset LGA775 FSB1333 DDR2 Mainboard
MEMORY: (Req.DDR2 MainBoard)2GB (2x1GB) PC6400 DDR2/800 Dual Channel Memory (Corsair Value Select or Major Brand)
VIDEO CARD: NVIDIA GeForce 8800 GT 512MB 16X PCI Express (Major Brand Powered by NVIDIA)
VIDEO CARD 2: NONE
VIDEO CARD 3: NONE
LCD Monitor: NONE
HARD DRIVE: Single Hard Drive (160GB SATA-II 3.0Gb/s 8MB Cache 7200RPM HDD)
Data Hard Drive: NONE
Optical Drive: (Special Price) 20X DVD±R/±RW + CD-R/RW DRIVE DUAL LAYER (BLACK COLOR)
Optical Drive 2: NONE
SOUND: 3D WAVE ON-BOARD 5.1 SOUND CARD