well, if you are using it as a media center could i suggest you the New Amd Llano Cpu? They are perfect for Htpc builds, They have the better inbuild Grapichs in the market right now, also changing to Amd Instead of Intel always Save you Money, the SSD is okey! but not really needed Right now you can upgrade that later. I will Post you What i think It would be the Best Bang for your Money.
CPU+Motherboard With Remote control
http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...
Power Suply(this green thing is a beast, enough for your build)
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Memory, good Kingstong Friend, cheap and Good Performance.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
HDD- Samsumg Spinpoint, beast, have to many good reviews.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
DVD PLAYER - Samsumg
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
434 dlls.
This will get you a Good Performance, maybe even better than that i3 you choosed, you will be able to get Another Gpu later if you feel like you want to upgrade your graphics, that psu can handle this system and a medium non profile gpu so you are good to go, you have 2 pci e x16 so you can get a good Sound Card and Upgrade your Home theather.
The case you choosed is an optimal choicee, just be warned, the fans are really noisy!!, i have that case and i had to change them. Good Luck, and I Leave you a video of the AMD LLANO GPU GAMPEPLAY.
http://www.youtube.com/watch?v=Zb5Yn6HKILU
good Luck.