Re: Current setup advice
How many PCI-E slots does your gaming mobo have and how good is the PSU? If you have enough power and 3 PCI-E slots, I'd say stick that 8800 GTS 512 into your gaming machine as a PhysX card and use one of those unused 8800 GTXs in the HTPC.
EDIT: Nvm, just saw that you had a 850W PSU. Might not be enough to power a third 8800 as a PhysX card. Your setups are fine as is.
Are you OCing that Q9450?
Intel Core i7 3930K | Asus X79 Sabertooth | 4x4 GB G.Skill RipJaw PC3-12800 | 2x EVGA NVIDIA GTX TITAN Signature 6GB SLI | OCZ Vertex 3 240GB SSD | 2x500 GB Seagate Barracuda RAID 0 | LG BD-ROM | Cyber Acoustics CA3001WB 2.1 Speakers | SeaSonic 1250W PSU | 3x Acer GD235HZ 23.6in 120Hz | Silverstone Fortress FT02 | Windows 8 Pro x64 | NVIDIA 3DVision SURROUND
Intel Core i7 2600K | Gigabyte Z68X-UD3H | 2x4 GB G.Skill Ripjaw PC3-12800 | XFX AMD R9 290X 4GB | Intel X-25M G2 160GB SSD | 2x250GB RAID 0 | Samsung BD-ROM | ABS SL 1050W PSU | Toshiba 42" REGZA 1080p HDTV | Antec 900 ATX | Windows 8 Pro x64
Sailor Jupiter (HTPC):
Intel Pentium Dual-Core E5200 | ZOTAC Geforce 9300 | 2x2 GB OCZ Fatal1ty PC2-8500 | WD 1TB | Hitachi 2TB External | MediaSonic HFR2-SU3S2 4x3TB Seagate Barracuda RAID 1+0 | LG Blu-Ray/HD DVD-ROM | FSP 150W PSU | Toshiba 42" REGZA 1080p HDTV | Foxconn RS233 mini-ITX | Windows 7 Pro x86