Help Create a Cheap setupd

Before we start my budget is 500$, I am looking for a quick and good quality computer but I am not planning to do gaming with it. I may be using it for a few games (Skyrim) but I dont mind playing on medium/low settings) I am also planning on buying from Tiger Direct.ca or newegg.ca so links to those adresses will be helpfull.

Have:
- Tower I have an Atex 17.6 x 16.6 x 7.5 (around)
-Dvd/cd slot burner
- I have an externall 1tb drive

Need:
- Will need a power Supply (have one of 350 watts but thats too small)
- Need a motherboard (No high gaming needs needed)
- SSD very low space just for speed
-I will need ram either 4gb or 8gb
-Video Card with hdmi (I would like 2 recommendations one for medium low settings and one for super low 40$-60$ card)
-Now for Cpu I want either an intel i5-2500k, a phenom black edition x6 thuban, or Amd fx 8120
(The reson for cpu is simple, I was thinking of a 4 core but a good 4 core would come to about 170-200 I might as well but 20 dollars more to get one of these).


Links and prices will be apreciated it and thank you for any responce