Need help with my computer build!?

ok so i am upgrading my computer and i need a little input now i am going to be hooking this computer up to 37" vizo lcd tv so keep that in mind so here is what i got so far... for the mobo: ASUS P5Q-E LGA 775 Intel P45 ATX Intel Motherboard, and for the graphics card: Galaxy 96GGF6HMFEXX, for the processor:Intel Core 2 Quad Q8400 Yorkfield 2.66GHz 4MB L2 Cache LGA 775 95W Quad-Core Processor, and for the memory:G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory, which i will order two sets to make it 8 gig, I also want to start playing some games on it to and i would really like to be able to play them on max settings