Get the i3, it's even overkill for the type of usage you're describing. All the parts listed by the above poster w/ the Amazon links is pretty much spot on what you're looking for. One thing though, if you want to save some money, would be to just make it a mATX build. Saves you money on the case and mobo.
Yeah, I was thinking of a micro ATX build as well.
What's a good 1155 micro-ATX board? Thinking of getting this case: http://www.newegg.com/Product/Produc...82E16811112218