Something that people seem to forget is that controllers work on PCs as well. Fact is, your PC can do anything a console can and then some. Only think going for consoles is ease of use, lower entry price and exclusives. Ease of use is going down imho, with the option to install games (that than still take forever to load compared to PC
).
Think Danlisa got SH3 running on a PS3.
But yeah, just get what you need to run the games that you want.