Hey, Oppo: what computer should I buy?

My 6-year-old Dell XPS desktop up and died on me this morning. So tonight, I'm going to go buy a brand-new computer. I'm super old school, so I've never actually owned a laptop. I think it's finally time. Here's what I'm looking for:

- It's going to be a PC (sorry, Apple fans, but there are so many programs that I use interchangeably between my home and work computer, and I really need it to be a PC).

- It doesn't need to be the fastest or the flashiest. I use my computer for Microsoft Office, Facebook, Oppo, general fucking around on the Internet, storing photos, and listening to music. That's pretty much it.

...and that's all. Anyone have any suggestions? I don't want to just end up walking into a store and buying what's prettiest, which is what I tend to do.