Change CPU Cooler to a Hyper 212 Evo
You dont really need the Thermal Paste but that is completely up to you I always use the paste that comes with.
You have a 3570K with a B75 motherboard, why not get a Z77 for OC'ing. If you dont plan to OC switch CPU to a 3450 and the motherboard to an H77. Its been a while since I've worked with the B75 dont recall it being able to OC. (let me verify this first sorry)
I would drop the sound card it is not needed onboard works perfectly fine, grab some speakers to make it even better
As stated above that PSU is not very reliable I would say go with Tier 3 PSU for your build Antec Basiq 550W (the one you picked is a Tier 5 we dont recommend them at all)
Besides that everything else looks good