Tile Engines

A 2D tile based engine will need to be implemented for my RPG. While I would have a lot of fun creating my own in between banging my head against the wall, a developer named Nick Gravelyn seems to have figured all this out in XNA 2.0. His development blog has a link the video series he created. It gets rave reviews on the App Hub forums, so as soon as school and work let up a tick, I'll start digging through these. It looks like a really nice roadmap. Hopefully I'll be able to adapt some of it to 4.0.