Hi, there are two issues with what you have picked. 1) 300watt P/S just not up to it. 2) no graphics card.
If you want to get a new PC you would like to last a while, this will need money spent on it to upgarde the 2 components.
This is the one I would pick
http://www.tigerdirect.com/applicati...sku=V133-71500
Why?
1) you can update the CPU to quad core if later you decide you need more grunt.
2) Aslo the graphics card can be updated.
3) Its brand new not refurbished.
Here is the link to the M/B
http://au.asus.com/products.aspx?l1=...&mo delmenu=1
As you can see it can be upgrded with ease.
4 gigs of ram should be fine.