the vynsane asylum

So, I need to get a new desktop computer. The one I have is horribly outdated and getting slower by the day. I'm not looking to spend a ton, maybe $400 or so (give or take a little).
Anyone have any suggestions as to what I should look for, in terms of brand, memory, processor, etc. In that price range? I really don't know shit about that stuff.

I asked on Facebook, but didn't have much luck.

I found this one on Dell's website.