Future shop vs build for non-gaming.

I got some advice earlier on a suggested build for my parents. Basically the build would come to 606$ with tax and shipping included. Now, someone suggested just going with an HP/ Dell since they won't be doing gaming.

How bad are the comps at future shop? This one for example: http://www.futureshop.ca/catalog/proddetail.asp?sku_id=...

I realize that's a refurbished computer, but the specs are just about the same, or better than the build.

This would be in the build:
http://www.tigerdirect.ca/applications/SearchTools/item...

http://www.tigerdirect.ca/applications/SearchTools/item...

http://www.tigerdirect.ca/applications/SearchTools/item...

http://www.tigerdirect.ca/applications/SearchTools/item...

http://www.tigerdirect.ca/applications/SearchTools/item...

Then I would just add windows, a PSU and DVD-R that we already have.

That 549$ Refurbished PC would cost a touch more an the next cheapest thing at future shop would be 499$, which again, very similar specs if not a touch better: http://www.futureshop.ca/catalog/proddetail.asp?logon=&...

So is a build advantageous? Or just get them the Dell/HP since it really won't matter?