Re: PC question
Facebook and Pogo games don't seem to be too demanding at a glance, so graphics wise an average card will/should suffice. If you plan on building the PC, you could probably get the components for cheaper than an already built PC, however you will need to have a bit of knowledge on where each part goes. From your post, it seems like you will be buying a pre-built PC, which makes things a little bit easier in terms of what to look for. Getting a custom built PC would be probably be the best idea if you aren't building it yourself, yet don't want to go for the ones that don't offer what you want.
Brand: Prebuilt? I personally like HP models, but am very biased as they are all I have ever owned. As for what brands to avoid, I usually avoid the brands that offer an extremely cheap PC when compared to the rest of the market. Not always the best way to judge, but the cheapest PC's are usually only good for basic things anyway.
Processor: Intel: Core i5; AMD: Phenom II X2 550 or above. Intel is more expensive than AMD is, with AMD you could get one of the better processors at the same cost as the Intel Core i5.
^Those processors are on the 1175 socket (Intel) or AM2/AM3 socket (AMD) motherboards. The motherboard you choose will also be important.
Hard drive: Depends. 500gb seems to be quite common in PC's on the shelf. If you see yourself using all of that, 1TB might be better.
Graphics: Again, an average card should be alright. Nvidia cards are great, but I'm biased. I'm sorry I can't offer any more information on this, graphics card specs confuse me.
Memory: 2gb at least, some programs can be quite memory heavy, even if they seem basic.
Power Supply: 500w should be alright, again it really depends if you plan on using your computer for anything else in future.
Hopefully that made sense. Note: I am not very experienced with computer specifications and this post is mainly based on my current understanding of them, so my advice will not be the best, it may also be inaccurate in some cases.